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Finding the Fourth Proportional to 401,040.60, 601,560.90 and 374,468.55

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Solution

The fourth proportional to 401,040.60, 601,560.90 and 374,468.55 is: 561,702.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,040.60 : 601,560.90 = 374,468.55 : x
  2. Step 2: Convert to fraction form
    401,040.60/601,560.90 = 374,468.55/x
  3. Step 3: Cross multiply
    401,040.60x = 601,560.90 × 374,468.55
  4. Step 4: Simplify right side
    401,040.60x = 225,265,637,959.70
  5. Step 5: Solve for x
    x = 225,265,637,959.70/401,040.60
  6. Step 6: Final answer
    x = 561,702.83

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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.