Home / 1,986,428-2,980,108.56-656,732

Finding the Fourth Proportional to 1,986,428, 2,980,108.56 and 656,732

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Solution

The fourth proportional to 1,986,428, 2,980,108.56 and 656,732 is: 985,252.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,428 : 2,980,108.56 = 656,732 : x
  2. Step 2: Convert to fraction form
    1,986,428/2,980,108.56 = 656,732/x
  3. Step 3: Cross multiply
    1,986,428x = 2,980,108.56 × 656,732
  4. Step 4: Simplify right side
    1,986,428x = 1,957,132,654,825.92
  5. Step 5: Solve for x
    x = 1,957,132,654,825.92/1,986,428
  6. Step 6: Final answer
    x = 985,252.25

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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.