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Finding the Fourth Proportional to 462,951.93, 638,898.49 and 258,990.69

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Solution

The fourth proportional to 462,951.93, 638,898.49 and 258,990.69 is: 357,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,951.93 : 638,898.49 = 258,990.69 : x
  2. Step 2: Convert to fraction form
    462,951.93/638,898.49 = 258,990.69/x
  3. Step 3: Cross multiply
    462,951.93x = 638,898.49 × 258,990.69
  4. Step 4: Simplify right side
    462,951.93x = 165,468,759,470.11
  5. Step 5: Solve for x
    x = 165,468,759,470.11/462,951.93
  6. Step 6: Final answer
    x = 357,421.04

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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.