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Finding the Fourth Proportional to 558,701.10, 838,051.65 and 502,713.90

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Solution

The fourth proportional to 558,701.10, 838,051.65 and 502,713.90 is: 754,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,701.10 : 838,051.65 = 502,713.90 : x
  2. Step 2: Convert to fraction form
    558,701.10/838,051.65 = 502,713.90/x
  3. Step 3: Cross multiply
    558,701.10x = 838,051.65 × 502,713.90
  4. Step 4: Simplify right side
    558,701.10x = 421,300,213,372.94
  5. Step 5: Solve for x
    x = 421,300,213,372.94/558,701.10
  6. Step 6: Final answer
    x = 754,070.85

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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.