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Finding the Fourth Proportional to 473,658.28, 653,627.94 and 258,788.20

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Solution

The fourth proportional to 473,658.28, 653,627.94 and 258,788.20 is: 357,116.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,658.28 : 653,627.94 = 258,788.20 : x
  2. Step 2: Convert to fraction form
    473,658.28/653,627.94 = 258,788.20/x
  3. Step 3: Cross multiply
    473,658.28x = 653,627.94 × 258,788.20
  4. Step 4: Simplify right side
    473,658.28x = 169,151,198,062.31
  5. Step 5: Solve for x
    x = 169,151,198,062.31/473,658.28
  6. Step 6: Final answer
    x = 357,116.52

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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.