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Finding the Fourth Proportional to 526,934.70, 790,404.08 and 127,574.87

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Solution

The fourth proportional to 526,934.70, 790,404.08 and 127,574.87 is: 191,362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,934.70 : 790,404.08 = 127,574.87 : x
  2. Step 2: Convert to fraction form
    526,934.70/790,404.08 = 127,574.87/x
  3. Step 3: Cross multiply
    526,934.70x = 790,404.08 × 127,574.87
  4. Step 4: Simplify right side
    526,934.70x = 100,835,693,163.58
  5. Step 5: Solve for x
    x = 100,835,693,163.58/526,934.70
  6. Step 6: Final answer
    x = 191,362.79

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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.