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Finding the Fourth Proportional to 587,574.20, 881,490.90 and 188,233.40

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Solution

The fourth proportional to 587,574.20, 881,490.90 and 188,233.40 is: 282,391.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,574.20 : 881,490.90 = 188,233.40 : x
  2. Step 2: Convert to fraction form
    587,574.20/881,490.90 = 188,233.40/x
  3. Step 3: Cross multiply
    587,574.20x = 881,490.90 × 188,233.40
  4. Step 4: Simplify right side
    587,574.20x = 165,926,029,176.06
  5. Step 5: Solve for x
    x = 165,926,029,176.06/587,574.20
  6. Step 6: Final answer
    x = 282,391.62

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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.