Home / 1,288,345.60-1,930,963.20-656,934.40

Finding the Fourth Proportional to 1,288,345.60, 1,930,963.20 and 656,934.40

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Solution

The fourth proportional to 1,288,345.60, 1,930,963.20 and 656,934.40 is: 984,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,345.60 : 1,930,963.20 = 656,934.40 : x
  2. Step 2: Convert to fraction form
    1,288,345.60/1,930,963.20 = 656,934.40/x
  3. Step 3: Cross multiply
    1,288,345.60x = 1,930,963.20 × 656,934.40
  4. Step 4: Simplify right side
    1,288,345.60x = 1,268,516,151,214.08
  5. Step 5: Solve for x
    x = 1,268,516,151,214.08/1,288,345.60
  6. Step 6: Final answer
    x = 984,608.60

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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.