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Finding the Fourth Proportional to 872,508.60, 1,307,726.10 and 367,068.60

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Solution

The fourth proportional to 872,508.60, 1,307,726.10 and 367,068.60 is: 550,166.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,508.60 : 1,307,726.10 = 367,068.60 : x
  2. Step 2: Convert to fraction form
    872,508.60/1,307,726.10 = 367,068.60/x
  3. Step 3: Cross multiply
    872,508.60x = 1,307,726.10 × 367,068.60
  4. Step 4: Simplify right side
    872,508.60x = 480,025,188,710.46
  5. Step 5: Solve for x
    x = 480,025,188,710.46/872,508.60
  6. Step 6: Final answer
    x = 550,166.71

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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.