Home / 1,238,818.80-1,858,228.20-923,890.80

Finding the Fourth Proportional to 1,238,818.80, 1,858,228.20 and 923,890.80

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Solution

The fourth proportional to 1,238,818.80, 1,858,228.20 and 923,890.80 is: 1,385,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,818.80 : 1,858,228.20 = 923,890.80 : x
  2. Step 2: Convert to fraction form
    1,238,818.80/1,858,228.20 = 923,890.80/x
  3. Step 3: Cross multiply
    1,238,818.80x = 1,858,228.20 × 923,890.80
  4. Step 4: Simplify right side
    1,238,818.80x = 1,716,799,938,280.56
  5. Step 5: Solve for x
    x = 1,716,799,938,280.56/1,238,818.80
  6. Step 6: Final answer
    x = 1,385,836.20

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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.