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Finding the Fourth Proportional to 453,766.20, 680,649.30 and 435,334.20

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Solution

The fourth proportional to 453,766.20, 680,649.30 and 435,334.20 is: 653,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,766.20 : 680,649.30 = 435,334.20 : x
  2. Step 2: Convert to fraction form
    453,766.20/680,649.30 = 435,334.20/x
  3. Step 3: Cross multiply
    453,766.20x = 680,649.30 × 435,334.20
  4. Step 4: Simplify right side
    453,766.20x = 296,309,918,496.06
  5. Step 5: Solve for x
    x = 296,309,918,496.06/453,766.20
  6. Step 6: Final answer
    x = 653,001.30

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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.