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Finding the Fourth Proportional to 355,251.10, 532,876.65 and 307,558.30

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Solution

The fourth proportional to 355,251.10, 532,876.65 and 307,558.30 is: 461,337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,251.10 : 532,876.65 = 307,558.30 : x
  2. Step 2: Convert to fraction form
    355,251.10/532,876.65 = 307,558.30/x
  3. Step 3: Cross multiply
    355,251.10x = 532,876.65 × 307,558.30
  4. Step 4: Simplify right side
    355,251.10x = 163,890,636,583.70
  5. Step 5: Solve for x
    x = 163,890,636,583.70/355,251.10
  6. Step 6: Final answer
    x = 461,337.45

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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.