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Finding the Fourth Proportional to 738,147.60, 1,105,471.80 and 738,147.60

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Solution

The fourth proportional to 738,147.60, 1,105,471.80 and 738,147.60 is: 1,105,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,147.60 : 1,105,471.80 = 738,147.60 : x
  2. Step 2: Convert to fraction form
    738,147.60/1,105,471.80 = 738,147.60/x
  3. Step 3: Cross multiply
    738,147.60x = 1,105,471.80 × 738,147.60
  4. Step 4: Simplify right side
    738,147.60x = 816,001,356,037.68
  5. Step 5: Solve for x
    x = 816,001,356,037.68/738,147.60
  6. Step 6: Final answer
    x = 1,105,471.80

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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.