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Finding the Fourth Proportional to 409,512.60, 614,268.90 and 372,114.90

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Solution

The fourth proportional to 409,512.60, 614,268.90 and 372,114.90 is: 558,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,512.60 : 614,268.90 = 372,114.90 : x
  2. Step 2: Convert to fraction form
    409,512.60/614,268.90 = 372,114.90/x
  3. Step 3: Cross multiply
    409,512.60x = 614,268.90 × 372,114.90
  4. Step 4: Simplify right side
    409,512.60x = 228,578,610,296.61
  5. Step 5: Solve for x
    x = 228,578,610,296.61/409,512.60
  6. Step 6: Final answer
    x = 558,172.35

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1.5x scale

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.