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Finding the Fourth Proportional to 587,757.20, 881,765.40 and 188,416.40

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Solution

The fourth proportional to 587,757.20, 881,765.40 and 188,416.40 is: 282,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,757.20 : 881,765.40 = 188,416.40 : x
  2. Step 2: Convert to fraction form
    587,757.20/881,765.40 = 188,416.40/x
  3. Step 3: Cross multiply
    587,757.20x = 881,765.40 × 188,416.40
  4. Step 4: Simplify right side
    587,757.20x = 166,139,062,312.56
  5. Step 5: Solve for x
    x = 166,139,062,312.56/587,757.20
  6. Step 6: Final answer
    x = 282,666.15

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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.