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Finding the Fourth Proportional to 440,188.59, 660,039.58 and 136,498.53

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Solution

The fourth proportional to 440,188.59, 660,039.58 and 136,498.53 is: 204,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,188.59 : 660,039.58 = 136,498.53 : x
  2. Step 2: Convert to fraction form
    440,188.59/660,039.58 = 136,498.53/x
  3. Step 3: Cross multiply
    440,188.59x = 660,039.58 × 136,498.53
  4. Step 4: Simplify right side
    440,188.59x = 90,094,431,729.32
  5. Step 5: Solve for x
    x = 90,094,431,729.32/440,188.59
  6. Step 6: Final answer
    x = 204,672.35

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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.