Home / 527,145.28-790,710.83-127,789.49

Finding the Fourth Proportional to 527,145.28, 790,710.83 and 127,789.49

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Solution

The fourth proportional to 527,145.28, 790,710.83 and 127,789.49 is: 191,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,145.28 : 790,710.83 = 127,789.49 : x
  2. Step 2: Convert to fraction form
    527,145.28/790,710.83 = 127,789.49/x
  3. Step 3: Cross multiply
    527,145.28x = 790,710.83 × 127,789.49
  4. Step 4: Simplify right side
    527,145.28x = 101,044,535,520.22
  5. Step 5: Solve for x
    x = 101,044,535,520.22/527,145.28
  6. Step 6: Final answer
    x = 191,682.52

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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.