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Finding the Fourth Proportional to 369,505.19, 554,257.79 and 132,718.70

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Solution

The fourth proportional to 369,505.19, 554,257.79 and 132,718.70 is: 199,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,505.19 : 554,257.79 = 132,718.70 : x
  2. Step 2: Convert to fraction form
    369,505.19/554,257.79 = 132,718.70/x
  3. Step 3: Cross multiply
    369,505.19x = 554,257.79 × 132,718.70
  4. Step 4: Simplify right side
    369,505.19x = 73,560,374,573.42
  5. Step 5: Solve for x
    x = 73,560,374,573.42/369,505.19
  6. Step 6: Final answer
    x = 199,078.05

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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.