Home / 838,773.70-1,258,160.55-418,869.70

Finding the Fourth Proportional to 838,773.70, 1,258,160.55 and 418,869.70

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Solution

The fourth proportional to 838,773.70, 1,258,160.55 and 418,869.70 is: 628,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,773.70 : 1,258,160.55 = 418,869.70 : x
  2. Step 2: Convert to fraction form
    838,773.70/1,258,160.55 = 418,869.70/x
  3. Step 3: Cross multiply
    838,773.70x = 1,258,160.55 × 418,869.70
  4. Step 4: Simplify right side
    838,773.70x = 527,005,332,130.34
  5. Step 5: Solve for x
    x = 527,005,332,130.34/838,773.70
  6. Step 6: Final answer
    x = 628,304.55

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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.