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Finding the Fourth Proportional to 527,808.95, 791,713.49 and 128,449.72

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Solution

The fourth proportional to 527,808.95, 791,713.49 and 128,449.72 is: 192,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,808.95 : 791,713.49 = 128,449.72 : x
  2. Step 2: Convert to fraction form
    527,808.95/791,713.49 = 128,449.72/x
  3. Step 3: Cross multiply
    527,808.95x = 791,713.49 × 128,449.72
  4. Step 4: Simplify right side
    527,808.95x = 101,695,372,152.16
  5. Step 5: Solve for x
    x = 101,695,372,152.16/527,808.95
  6. Step 6: Final answer
    x = 192,674.59

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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.