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Finding the Fourth Proportional to 527,826.22, 791,728.22 and 128,469.22

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Solution

The fourth proportional to 527,826.22, 791,728.22 and 128,469.22 is: 192,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,826.22 : 791,728.22 = 128,469.22 : x
  2. Step 2: Convert to fraction form
    527,826.22/791,728.22 = 128,469.22/x
  3. Step 3: Cross multiply
    527,826.22x = 791,728.22 × 128,469.22
  4. Step 4: Simplify right side
    527,826.22x = 101,712,706,875.39
  5. Step 5: Solve for x
    x = 101,712,706,875.39/527,826.22
  6. Step 6: Final answer
    x = 192,701.13

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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.