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Finding the Fourth Proportional to 344,972.71, 476,003.08 and 317,068.55

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Solution

The fourth proportional to 344,972.71, 476,003.08 and 317,068.55 is: 437,500.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,972.71 : 476,003.08 = 317,068.55 : x
  2. Step 2: Convert to fraction form
    344,972.71/476,003.08 = 317,068.55/x
  3. Step 3: Cross multiply
    344,972.71x = 476,003.08 × 317,068.55
  4. Step 4: Simplify right side
    344,972.71x = 150,925,606,371.13
  5. Step 5: Solve for x
    x = 150,925,606,371.13/344,972.71
  6. Step 6: Final answer
    x = 437,500.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.