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Finding the Fourth Proportional to 585,878.72, 878,811.66 and 444,591.72

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Solution

The fourth proportional to 585,878.72, 878,811.66 and 444,591.72 is: 666,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,878.72 : 878,811.66 = 444,591.72 : x
  2. Step 2: Convert to fraction form
    585,878.72/878,811.66 = 444,591.72/x
  3. Step 3: Cross multiply
    585,878.72x = 878,811.66 × 444,591.72
  4. Step 4: Simplify right side
    585,878.72x = 390,712,387,475.46
  5. Step 5: Solve for x
    x = 390,712,387,475.46/585,878.72
  6. Step 6: Final answer
    x = 666,882.71

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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.