Home / 887,760.64-1,225,118.64-479,870.38

Finding the Fourth Proportional to 887,760.64, 1,225,118.64 and 479,870.38

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Solution

The fourth proportional to 887,760.64, 1,225,118.64 and 479,870.38 is: 662,225.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,760.64 : 1,225,118.64 = 479,870.38 : x
  2. Step 2: Convert to fraction form
    887,760.64/1,225,118.64 = 479,870.38/x
  3. Step 3: Cross multiply
    887,760.64x = 1,225,118.64 × 479,870.38
  4. Step 4: Simplify right side
    887,760.64x = 587,898,147,321.88
  5. Step 5: Solve for x
    x = 587,898,147,321.88/887,760.64
  6. Step 6: Final answer
    x = 662,225.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.