Home / 986,621.76-1,479,333.36-386,864.38

Finding the Fourth Proportional to 986,621.76, 1,479,333.36 and 386,864.38

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Solution

The fourth proportional to 986,621.76, 1,479,333.36 and 386,864.38 is: 580,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,621.76 : 1,479,333.36 = 386,864.38 : x
  2. Step 2: Convert to fraction form
    986,621.76/1,479,333.36 = 386,864.38/x
  3. Step 3: Cross multiply
    986,621.76x = 1,479,333.36 × 386,864.38
  4. Step 4: Simplify right side
    986,621.76x = 572,301,383,129.72
  5. Step 5: Solve for x
    x = 572,301,383,129.72/986,621.76
  6. Step 6: Final answer
    x = 580,061.59

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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.