Home / 459,008.20-688,512.30-412,352.20

Finding the Fourth Proportional to 459,008.20, 688,512.30 and 412,352.20

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Solution

The fourth proportional to 459,008.20, 688,512.30 and 412,352.20 is: 618,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,008.20 : 688,512.30 = 412,352.20 : x
  2. Step 2: Convert to fraction form
    459,008.20/688,512.30 = 412,352.20/x
  3. Step 3: Cross multiply
    459,008.20x = 688,512.30 × 412,352.20
  4. Step 4: Simplify right side
    459,008.20x = 283,909,561,632.06
  5. Step 5: Solve for x
    x = 283,909,561,632.06/459,008.20
  6. Step 6: Final answer
    x = 618,528.30

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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.