Home / 986,290.72-1,479,520.41-346,538.85

Finding the Fourth Proportional to 986,290.72, 1,479,520.41 and 346,538.85

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Solution

The fourth proportional to 986,290.72, 1,479,520.41 and 346,538.85 is: 519,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,290.72 : 1,479,520.41 = 346,538.85 : x
  2. Step 2: Convert to fraction form
    986,290.72/1,479,520.41 = 346,538.85/x
  3. Step 3: Cross multiply
    986,290.72x = 1,479,520.41 × 346,538.85
  4. Step 4: Simplify right side
    986,290.72x = 512,711,301,432.93
  5. Step 5: Solve for x
    x = 512,711,301,432.93/986,290.72
  6. Step 6: Final answer
    x = 519,837.90

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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.