Home / 906,622.55-1,251,089.85-498,658.54

Finding the Fourth Proportional to 906,622.55, 1,251,089.85 and 498,658.54

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Solution

The fourth proportional to 906,622.55, 1,251,089.85 and 498,658.54 is: 688,121.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,622.55 : 1,251,089.85 = 498,658.54 : x
  2. Step 2: Convert to fraction form
    906,622.55/1,251,089.85 = 498,658.54/x
  3. Step 3: Cross multiply
    906,622.55x = 1,251,089.85 × 498,658.54
  4. Step 4: Simplify right side
    906,622.55x = 623,866,635,516.53
  5. Step 5: Solve for x
    x = 623,866,635,516.53/906,622.55
  6. Step 6: Final answer
    x = 688,121.69

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.