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Finding the Fourth Proportional to 713,543.28, 1,070,493.42 and 503,591.28

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Solution

The fourth proportional to 713,543.28, 1,070,493.42 and 503,591.28 is: 755,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,543.28 : 1,070,493.42 = 503,591.28 : x
  2. Step 2: Convert to fraction form
    713,543.28/1,070,493.42 = 503,591.28/x
  3. Step 3: Cross multiply
    713,543.28x = 1,070,493.42 × 503,591.28
  4. Step 4: Simplify right side
    713,543.28x = 539,091,151,609.38
  5. Step 5: Solve for x
    x = 539,091,151,609.38/713,543.28
  6. Step 6: Final answer
    x = 755,512.90

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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.