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Finding the Fourth Proportional to 425,543.74, 587,243.36 and 234,574.90

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Solution

The fourth proportional to 425,543.74, 587,243.36 and 234,574.90 is: 323,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,543.74 : 587,243.36 = 234,574.90 : x
  2. Step 2: Convert to fraction form
    425,543.74/587,243.36 = 234,574.90/x
  3. Step 3: Cross multiply
    425,543.74x = 587,243.36 × 234,574.90
  4. Step 4: Simplify right side
    425,543.74x = 137,752,552,447.66
  5. Step 5: Solve for x
    x = 137,752,552,447.66/425,543.74
  6. Step 6: Final answer
    x = 323,709.50

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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.