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Finding the Fourth Proportional to 883,503.60, 1,323,287.10 and 726,039.60

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Solution

The fourth proportional to 883,503.60, 1,323,287.10 and 726,039.60 is: 1,087,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,503.60 : 1,323,287.10 = 726,039.60 : x
  2. Step 2: Convert to fraction form
    883,503.60/1,323,287.10 = 726,039.60/x
  3. Step 3: Cross multiply
    883,503.60x = 1,323,287.10 × 726,039.60
  4. Step 4: Simplify right side
    883,503.60x = 960,758,836,769.16
  5. Step 5: Solve for x
    x = 960,758,836,769.16/883,503.60
  6. Step 6: Final answer
    x = 1,087,441.90

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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.