Home / 663,836.40-993,130.20-576,064.80

Finding the Fourth Proportional to 663,836.40, 993,130.20 and 576,064.80

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Solution

The fourth proportional to 663,836.40, 993,130.20 and 576,064.80 is: 861,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,836.40 : 993,130.20 = 576,064.80 : x
  2. Step 2: Convert to fraction form
    663,836.40/993,130.20 = 576,064.80/x
  3. Step 3: Cross multiply
    663,836.40x = 993,130.20 × 576,064.80
  4. Step 4: Simplify right side
    663,836.40x = 572,107,350,036.96
  5. Step 5: Solve for x
    x = 572,107,350,036.96/663,836.40
  6. Step 6: Final answer
    x = 861,819.79

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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.