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Finding the Fourth Proportional to 587,423.40, 881,135.10 and 272,495.40

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Solution

The fourth proportional to 587,423.40, 881,135.10 and 272,495.40 is: 408,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,423.40 : 881,135.10 = 272,495.40 : x
  2. Step 2: Convert to fraction form
    587,423.40/881,135.10 = 272,495.40/x
  3. Step 3: Cross multiply
    587,423.40x = 881,135.10 × 272,495.40
  4. Step 4: Simplify right side
    587,423.40x = 240,105,261,528.54
  5. Step 5: Solve for x
    x = 240,105,261,528.54/587,423.40
  6. Step 6: Final answer
    x = 408,743.10

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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.