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Finding the Fourth Proportional to 572,098.70, 858,289.52 and 403,948.47

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Solution

The fourth proportional to 572,098.70, 858,289.52 and 403,948.47 is: 606,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,098.70 : 858,289.52 = 403,948.47 : x
  2. Step 2: Convert to fraction form
    572,098.70/858,289.52 = 403,948.47/x
  3. Step 3: Cross multiply
    572,098.70x = 858,289.52 × 403,948.47
  4. Step 4: Simplify right side
    572,098.70x = 346,704,735,549.40
  5. Step 5: Solve for x
    x = 346,704,735,549.40/572,098.70
  6. Step 6: Final answer
    x = 606,022.59

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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.