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Finding the Fourth Proportional to 527,704.54, 791,557.45 and 128,342.54

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Solution

The fourth proportional to 527,704.54, 791,557.45 and 128,342.54 is: 192,513.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,704.54 : 791,557.45 = 128,342.54 : x
  2. Step 2: Convert to fraction form
    527,704.54/791,557.45 = 128,342.54/x
  3. Step 3: Cross multiply
    527,704.54x = 791,557.45 × 128,342.54
  4. Step 4: Simplify right side
    527,704.54x = 101,590,495,346.96
  5. Step 5: Solve for x
    x = 101,590,495,346.96/527,704.54
  6. Step 6: Final answer
    x = 192,513.97

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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.