Home / 579,442,852.20-869,164,278.30-443,393,956.20

Finding the Fourth Proportional to 579,442,852.20, 869,164,278.30 and 443,393,956.20

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Solution

The fourth proportional to 579,442,852.20, 869,164,278.30 and 443,393,956.20 is: 665,090,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,442,852.20 : 869,164,278.30 = 443,393,956.20 : x
  2. Step 2: Convert to fraction form
    579,442,852.20/869,164,278.30 = 443,393,956.20/x
  3. Step 3: Cross multiply
    579,442,852.20x = 869,164,278.30 × 443,393,956.20
  4. Step 4: Simplify right side
    579,442,852.20x = 385,382,187,943,154,752
  5. Step 5: Solve for x
    x = 385,382,187,943,154,752/579,442,852.20
  6. Step 6: Final answer
    x = 665,090,934.30

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Half scale
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Double scale
Find fourth proportional to 579,442,853.20, 869,164,279.80 and 443,393,957.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.