Home / 644,130.20-966,195.30-555,483.80

Finding the Fourth Proportional to 644,130.20, 966,195.30 and 555,483.80

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Solution

The fourth proportional to 644,130.20, 966,195.30 and 555,483.80 is: 833,225.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,130.20 : 966,195.30 = 555,483.80 : x
  2. Step 2: Convert to fraction form
    644,130.20/966,195.30 = 555,483.80/x
  3. Step 3: Cross multiply
    644,130.20x = 966,195.30 × 555,483.80
  4. Step 4: Simplify right side
    644,130.20x = 536,705,836,786.14
  5. Step 5: Solve for x
    x = 536,705,836,786.14/644,130.20
  6. Step 6: Final answer
    x = 833,225.70

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Double scale
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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.