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Finding the Fourth Proportional to 425,624.40, 587,388.12 and 234,637.44

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Solution

The fourth proportional to 425,624.40, 587,388.12 and 234,637.44 is: 323,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,624.40 : 587,388.12 = 234,637.44 : x
  2. Step 2: Convert to fraction form
    425,624.40/587,388.12 = 234,637.44/x
  3. Step 3: Cross multiply
    425,624.40x = 587,388.12 × 234,637.44
  4. Step 4: Simplify right side
    425,624.40x = 137,823,244,763.21
  5. Step 5: Solve for x
    x = 137,823,244,763.21/425,624.40
  6. Step 6: Final answer
    x = 323,814.25

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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.