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Finding the Fourth Proportional to 425,969.28, 587,732.76 and 260,355.33

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Solution

The fourth proportional to 425,969.28, 587,732.76 and 260,355.33 is: 359,226.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,969.28 : 587,732.76 = 260,355.33 : x
  2. Step 2: Convert to fraction form
    425,969.28/587,732.76 = 260,355.33/x
  3. Step 3: Cross multiply
    425,969.28x = 587,732.76 × 260,355.33
  4. Step 4: Simplify right side
    425,969.28x = 153,019,356,681.61
  5. Step 5: Solve for x
    x = 153,019,356,681.61/425,969.28
  6. Step 6: Final answer
    x = 359,226.27

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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.