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Finding the Fourth Proportional to 425,648.16, 587,416.20 and 234,661.11

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Solution

The fourth proportional to 425,648.16, 587,416.20 and 234,661.11 is: 323,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,648.16 : 587,416.20 = 234,661.11 : x
  2. Step 2: Convert to fraction form
    425,648.16/587,416.20 = 234,661.11/x
  3. Step 3: Cross multiply
    425,648.16x = 587,416.20 × 234,661.11
  4. Step 4: Simplify right side
    425,648.16x = 137,843,737,523.98
  5. Step 5: Solve for x
    x = 137,843,737,523.98/425,648.16
  6. Step 6: Final answer
    x = 323,844.32

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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.