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Finding the Fourth Proportional to 738,140.30, 1,105,242.15 and 738,140.30

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Solution

The fourth proportional to 738,140.30, 1,105,242.15 and 738,140.30 is: 1,105,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,140.30 : 1,105,242.15 = 738,140.30 : x
  2. Step 2: Convert to fraction form
    738,140.30/1,105,242.15 = 738,140.30/x
  3. Step 3: Cross multiply
    738,140.30x = 1,105,242.15 × 738,140.30
  4. Step 4: Simplify right side
    738,140.30x = 815,823,772,173.65
  5. Step 5: Solve for x
    x = 815,823,772,173.65/738,140.30
  6. Step 6: Final answer
    x = 1,105,242.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.