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Finding the Fourth Proportional to 673,761.12, 929,772.56 and 371,948.64

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Solution

The fourth proportional to 673,761.12, 929,772.56 and 371,948.64 is: 513,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,761.12 : 929,772.56 = 371,948.64 : x
  2. Step 2: Convert to fraction form
    673,761.12/929,772.56 = 371,948.64/x
  3. Step 3: Cross multiply
    673,761.12x = 929,772.56 × 371,948.64
  4. Step 4: Simplify right side
    673,761.12x = 345,827,639,201.32
  5. Step 5: Solve for x
    x = 345,827,639,201.32/673,761.12
  6. Step 6: Final answer
    x = 513,279.30

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1.5x scale

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.