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Finding the Fourth Proportional to 524,862.39, 724,658.70 and 403,790.07

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Solution

The fourth proportional to 524,862.39, 724,658.70 and 403,790.07 is: 557,498.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,862.39 : 724,658.70 = 403,790.07 : x
  2. Step 2: Convert to fraction form
    524,862.39/724,658.70 = 403,790.07/x
  3. Step 3: Cross multiply
    524,862.39x = 724,658.70 × 403,790.07
  4. Step 4: Simplify right side
    524,862.39x = 292,609,987,199.11
  5. Step 5: Solve for x
    x = 292,609,987,199.11/524,862.39
  6. Step 6: Final answer
    x = 557,498.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.