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Finding the Fourth Proportional to 473,645.76, 653,623.41 and 258,781.20

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Solution

The fourth proportional to 473,645.76, 653,623.41 and 258,781.20 is: 357,113.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,645.76 : 653,623.41 = 258,781.20 : x
  2. Step 2: Convert to fraction form
    473,645.76/653,623.41 = 258,781.20/x
  3. Step 3: Cross multiply
    473,645.76x = 653,623.41 × 258,781.20
  4. Step 4: Simplify right side
    473,645.76x = 169,145,450,387.89
  5. Step 5: Solve for x
    x = 169,145,450,387.89/473,645.76
  6. Step 6: Final answer
    x = 357,113.83

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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.