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Finding the Fourth Proportional to 614,658.17, 920,248.56 and 325,811.66

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Solution

The fourth proportional to 614,658.17, 920,248.56 and 325,811.66 is: 487,795.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,658.17 : 920,248.56 = 325,811.66 : x
  2. Step 2: Convert to fraction form
    614,658.17/920,248.56 = 325,811.66/x
  3. Step 3: Cross multiply
    614,658.17x = 920,248.56 × 325,811.66
  4. Step 4: Simplify right side
    614,658.17x = 299,827,706,344.97
  5. Step 5: Solve for x
    x = 299,827,706,344.97/614,658.17
  6. Step 6: Final answer
    x = 487,795.85

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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.