Home / 1,861,123.80-2,791,029.60-663,085.20

Finding the Fourth Proportional to 1,861,123.80, 2,791,029.60 and 663,085.20

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Solution

The fourth proportional to 1,861,123.80, 2,791,029.60 and 663,085.20 is: 994,394.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,123.80 : 2,791,029.60 = 663,085.20 : x
  2. Step 2: Convert to fraction form
    1,861,123.80/2,791,029.60 = 663,085.20/x
  3. Step 3: Cross multiply
    1,861,123.80x = 2,791,029.60 × 663,085.20
  4. Step 4: Simplify right side
    1,861,123.80x = 1,850,690,420,521.92
  5. Step 5: Solve for x
    x = 1,850,690,420,521.92/1,861,123.80
  6. Step 6: Final answer
    x = 994,394.04

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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.