Home / 1,986,038.40-2,979,057.60-656,342.40

Finding the Fourth Proportional to 1,986,038.40, 2,979,057.60 and 656,342.40

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Solution

The fourth proportional to 1,986,038.40, 2,979,057.60 and 656,342.40 is: 984,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,038.40 : 2,979,057.60 = 656,342.40 : x
  2. Step 2: Convert to fraction form
    1,986,038.40/2,979,057.60 = 656,342.40/x
  3. Step 3: Cross multiply
    1,986,038.40x = 2,979,057.60 × 656,342.40
  4. Step 4: Simplify right side
    1,986,038.40x = 1,955,281,814,922.24
  5. Step 5: Solve for x
    x = 1,955,281,814,922.24/1,986,038.40
  6. Step 6: Final answer
    x = 984,513.60

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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.