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Finding the Fourth Proportional to 587,374.40, 881,061.60 and 400,750.40

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Solution

The fourth proportional to 587,374.40, 881,061.60 and 400,750.40 is: 601,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,374.40 : 881,061.60 = 400,750.40 : x
  2. Step 2: Convert to fraction form
    587,374.40/881,061.60 = 400,750.40/x
  3. Step 3: Cross multiply
    587,374.40x = 881,061.60 × 400,750.40
  4. Step 4: Simplify right side
    587,374.40x = 353,085,788,624.64
  5. Step 5: Solve for x
    x = 353,085,788,624.64/587,374.40
  6. Step 6: Final answer
    x = 601,125.60

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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.