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Finding the Fourth Proportional to 677,542.56, 935,002.32 and 371,612.69

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Solution

The fourth proportional to 677,542.56, 935,002.32 and 371,612.69 is: 512,821.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,542.56 : 935,002.32 = 371,612.69 : x
  2. Step 2: Convert to fraction form
    677,542.56/935,002.32 = 371,612.69/x
  3. Step 3: Cross multiply
    677,542.56x = 935,002.32 × 371,612.69
  4. Step 4: Simplify right side
    677,542.56x = 347,458,727,291.44
  5. Step 5: Solve for x
    x = 347,458,727,291.44/677,542.56
  6. Step 6: Final answer
    x = 512,821.99

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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.