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Finding the Fourth Proportional to 587,788.70, 881,812.65 and 188,447.90

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Solution

The fourth proportional to 587,788.70, 881,812.65 and 188,447.90 is: 282,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,788.70 : 881,812.65 = 188,447.90 : x
  2. Step 2: Convert to fraction form
    587,788.70/881,812.65 = 188,447.90/x
  3. Step 3: Cross multiply
    587,788.70x = 881,812.65 × 188,447.90
  4. Step 4: Simplify right side
    587,788.70x = 166,175,742,085.94
  5. Step 5: Solve for x
    x = 166,175,742,085.94/587,788.70
  6. Step 6: Final answer
    x = 282,713.40

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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.