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Finding the Fourth Proportional to 459,008.10, 688,512.15 and 434,513.70

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Solution

The fourth proportional to 459,008.10, 688,512.15 and 434,513.70 is: 651,770.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,008.10 : 688,512.15 = 434,513.70 : x
  2. Step 2: Convert to fraction form
    459,008.10/688,512.15 = 434,513.70/x
  3. Step 3: Cross multiply
    459,008.10x = 688,512.15 × 434,513.70
  4. Step 4: Simplify right side
    459,008.10x = 299,167,961,791.46
  5. Step 5: Solve for x
    x = 299,167,961,791.46/459,008.10
  6. Step 6: Final answer
    x = 651,770.55

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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.