Home / 749,050.70-1,123,721.85-216,589.10

Finding the Fourth Proportional to 749,050.70, 1,123,721.85 and 216,589.10

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Solution

The fourth proportional to 749,050.70, 1,123,721.85 and 216,589.10 is: 324,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,050.70 : 1,123,721.85 = 216,589.10 : x
  2. Step 2: Convert to fraction form
    749,050.70/1,123,721.85 = 216,589.10/x
  3. Step 3: Cross multiply
    749,050.70x = 1,123,721.85 × 216,589.10
  4. Step 4: Simplify right side
    749,050.70x = 243,385,904,141.84
  5. Step 5: Solve for x
    x = 243,385,904,141.84/749,050.70
  6. Step 6: Final answer
    x = 324,925.81

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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.