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Finding the Fourth Proportional to 311,527.88, 467,291.76 and 74,870.55

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Solution

The fourth proportional to 311,527.88, 467,291.76 and 74,870.55 is: 112,305.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,527.88 : 467,291.76 = 74,870.55 : x
  2. Step 2: Convert to fraction form
    311,527.88/467,291.76 = 74,870.55/x
  3. Step 3: Cross multiply
    311,527.88x = 467,291.76 × 74,870.55
  4. Step 4: Simplify right side
    311,527.88x = 34,986,391,081.67
  5. Step 5: Solve for x
    x = 34,986,391,081.67/311,527.88
  6. Step 6: Final answer
    x = 112,305.81

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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.