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Finding the Fourth Proportional to 587,422.40, 881,133.60 and 272,494.40

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Solution

The fourth proportional to 587,422.40, 881,133.60 and 272,494.40 is: 408,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,422.40 : 881,133.60 = 272,494.40 : x
  2. Step 2: Convert to fraction form
    587,422.40/881,133.60 = 272,494.40/x
  3. Step 3: Cross multiply
    587,422.40x = 881,133.60 × 272,494.40
  4. Step 4: Simplify right side
    587,422.40x = 240,103,971,651.84
  5. Step 5: Solve for x
    x = 240,103,971,651.84/587,422.40
  6. Step 6: Final answer
    x = 408,741.60

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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.