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Finding the Fourth Proportional to 527,726.52, 791,590.01 and 128,364.84

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Solution

The fourth proportional to 527,726.52, 791,590.01 and 128,364.84 is: 192,547.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,726.52 : 791,590.01 = 128,364.84 : x
  2. Step 2: Convert to fraction form
    527,726.52/791,590.01 = 128,364.84/x
  3. Step 3: Cross multiply
    527,726.52x = 791,590.01 × 128,364.84
  4. Step 4: Simplify right side
    527,726.52x = 101,612,324,337.42
  5. Step 5: Solve for x
    x = 101,612,324,337.42/527,726.52
  6. Step 6: Final answer
    x = 192,547.31

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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.