Home / 579,221.80-868,443.90-263,516.20

Finding the Fourth Proportional to 579,221.80, 868,443.90 and 263,516.20

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Solution

The fourth proportional to 579,221.80, 868,443.90 and 263,516.20 is: 395,097.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,221.80 : 868,443.90 = 263,516.20 : x
  2. Step 2: Convert to fraction form
    579,221.80/868,443.90 = 263,516.20/x
  3. Step 3: Cross multiply
    579,221.80x = 868,443.90 × 263,516.20
  4. Step 4: Simplify right side
    579,221.80x = 228,849,036,441.18
  5. Step 5: Solve for x
    x = 228,849,036,441.18/579,221.80
  6. Step 6: Final answer
    x = 395,097.42

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Half scale
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Double scale
Find fourth proportional to 579,222.80, 868,445.40 and 263,517.20
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.