Home / 1,538,660.61-2,123,240.40-850,324.23

Finding the Fourth Proportional to 1,538,660.61, 2,123,240.40 and 850,324.23

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Solution

The fourth proportional to 1,538,660.61, 2,123,240.40 and 850,324.23 is: 1,173,385.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,660.61 : 2,123,240.40 = 850,324.23 : x
  2. Step 2: Convert to fraction form
    1,538,660.61/2,123,240.40 = 850,324.23/x
  3. Step 3: Cross multiply
    1,538,660.61x = 2,123,240.40 × 850,324.23
  4. Step 4: Simplify right side
    1,538,660.61x = 1,805,442,758,234.89
  5. Step 5: Solve for x
    x = 1,805,442,758,234.89/1,538,660.61
  6. Step 6: Final answer
    x = 1,173,385.96

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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.