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Finding the Fourth Proportional to 916,393.68, 1,375,134.84 and 495,660.24

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Solution

The fourth proportional to 916,393.68, 1,375,134.84 and 495,660.24 is: 743,784.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,393.68 : 1,375,134.84 = 495,660.24 : x
  2. Step 2: Convert to fraction form
    916,393.68/1,375,134.84 = 495,660.24/x
  3. Step 3: Cross multiply
    916,393.68x = 1,375,134.84 × 495,660.24
  4. Step 4: Simplify right side
    916,393.68x = 681,599,664,826.76
  5. Step 5: Solve for x
    x = 681,599,664,826.76/916,393.68
  6. Step 6: Final answer
    x = 743,784.77

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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.