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Finding the Fourth Proportional to 425,396.63, 587,019.72 and 234,410.02

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Solution

The fourth proportional to 425,396.63, 587,019.72 and 234,410.02 is: 323,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,396.63 : 587,019.72 = 234,410.02 : x
  2. Step 2: Convert to fraction form
    425,396.63/587,019.72 = 234,410.02/x
  3. Step 3: Cross multiply
    425,396.63x = 587,019.72 × 234,410.02
  4. Step 4: Simplify right side
    425,396.63x = 137,603,304,599.85
  5. Step 5: Solve for x
    x = 137,603,304,599.85/425,396.63
  6. Step 6: Final answer
    x = 323,470.60

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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.