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Finding the Fourth Proportional to 631,074.70, 944,395.48 and 543,387.34

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Solution

The fourth proportional to 631,074.70, 944,395.48 and 543,387.34 is: 813,172.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,074.70 : 944,395.48 = 543,387.34 : x
  2. Step 2: Convert to fraction form
    631,074.70/944,395.48 = 543,387.34/x
  3. Step 3: Cross multiply
    631,074.70x = 944,395.48 × 543,387.34
  4. Step 4: Simplify right side
    631,074.70x = 513,172,547,785.22
  5. Step 5: Solve for x
    x = 513,172,547,785.22/631,074.70
  6. Step 6: Final answer
    x = 813,172.43

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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.