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Finding the Fourth Proportional to 425,231.20, 637,616.40 and 175,938.40

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Solution

The fourth proportional to 425,231.20, 637,616.40 and 175,938.40 is: 263,812.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,231.20 : 637,616.40 = 175,938.40 : x
  2. Step 2: Convert to fraction form
    425,231.20/637,616.40 = 175,938.40/x
  3. Step 3: Cross multiply
    425,231.20x = 637,616.40 × 175,938.40
  4. Step 4: Simplify right side
    425,231.20x = 112,181,209,229.76
  5. Step 5: Solve for x
    x = 112,181,209,229.76/425,231.20
  6. Step 6: Final answer
    x = 263,812.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.