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Finding the Fourth Proportional to 586,243.52, 808,373.61 and 381,915.53

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Solution

The fourth proportional to 586,243.52, 808,373.61 and 381,915.53 is: 526,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,243.52 : 808,373.61 = 381,915.53 : x
  2. Step 2: Convert to fraction form
    586,243.52/808,373.61 = 381,915.53/x
  3. Step 3: Cross multiply
    586,243.52x = 808,373.61 × 381,915.53
  4. Step 4: Simplify right side
    586,243.52x = 308,730,434,690.70
  5. Step 5: Solve for x
    x = 308,730,434,690.70/586,243.52
  6. Step 6: Final answer
    x = 526,624.90

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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.