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Finding the Fourth Proportional to 425,605.48, 587,339.68 and 234,625.76

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Solution

The fourth proportional to 425,605.48, 587,339.68 and 234,625.76 is: 323,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,605.48 : 587,339.68 = 234,625.76 : x
  2. Step 2: Convert to fraction form
    425,605.48/587,339.68 = 234,625.76/x
  3. Step 3: Cross multiply
    425,605.48x = 587,339.68 × 234,625.76
  4. Step 4: Simplify right side
    425,605.48x = 137,805,018,798.16
  5. Step 5: Solve for x
    x = 137,805,018,798.16/425,605.48
  6. Step 6: Final answer
    x = 323,785.82

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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.