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Finding the Fourth Proportional to 969,059.76, 1,455,954.88 and 915,347.04

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Solution

The fourth proportional to 969,059.76, 1,455,954.88 and 915,347.04 is: 1,375,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,059.76 : 1,455,954.88 = 915,347.04 : x
  2. Step 2: Convert to fraction form
    969,059.76/1,455,954.88 = 915,347.04/x
  3. Step 3: Cross multiply
    969,059.76x = 1,455,954.88 × 915,347.04
  4. Step 4: Simplify right side
    969,059.76x = 1,332,703,989,781.56
  5. Step 5: Solve for x
    x = 1,332,703,989,781.56/969,059.76
  6. Step 6: Final answer
    x = 1,375,254.70

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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.