Home / 696,138.80-1,044,208.20-654,148.40

Finding the Fourth Proportional to 696,138.80, 1,044,208.20 and 654,148.40

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Solution

The fourth proportional to 696,138.80, 1,044,208.20 and 654,148.40 is: 981,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,138.80 : 1,044,208.20 = 654,148.40 : x
  2. Step 2: Convert to fraction form
    696,138.80/1,044,208.20 = 654,148.40/x
  3. Step 3: Cross multiply
    696,138.80x = 1,044,208.20 × 654,148.40
  4. Step 4: Simplify right side
    696,138.80x = 683,067,123,296.88
  5. Step 5: Solve for x
    x = 683,067,123,296.88/696,138.80
  6. Step 6: Final answer
    x = 981,222.60

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Double scale
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Similar ratio
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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.