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Finding the Fourth Proportional to 2,318.38, 3,477.56 and 587

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Solution

The fourth proportional to 2,318.38, 3,477.56 and 587 is: 880.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.38 : 3,477.56 = 587 : x
  2. Step 2: Convert to fraction form
    2,318.38/3,477.56 = 587/x
  3. Step 3: Cross multiply
    2,318.38x = 3,477.56 × 587
  4. Step 4: Simplify right side
    2,318.38x = 2,041,327.72
  5. Step 5: Solve for x
    x = 2,041,327.72/2,318.38
  6. Step 6: Final answer
    x = 880.50

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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.