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Finding the Fourth Proportional to 425,625.40, 587,389.50 and 234,638.44

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Solution

The fourth proportional to 425,625.40, 587,389.50 and 234,638.44 is: 323,815.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,625.40 : 587,389.50 = 234,638.44 : x
  2. Step 2: Convert to fraction form
    425,625.40/587,389.50 = 234,638.44/x
  3. Step 3: Cross multiply
    425,625.40x = 587,389.50 × 234,638.44
  4. Step 4: Simplify right side
    425,625.40x = 137,824,155,952.38
  5. Step 5: Solve for x
    x = 137,824,155,952.38/425,625.40
  6. Step 6: Final answer
    x = 323,815.63

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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.