Home / 1,025,800.20-1,539,963.90-646,720.20

Finding the Fourth Proportional to 1,025,800.20, 1,539,963.90 and 646,720.20

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Solution

The fourth proportional to 1,025,800.20, 1,539,963.90 and 646,720.20 is: 970,876.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,800.20 : 1,539,963.90 = 646,720.20 : x
  2. Step 2: Convert to fraction form
    1,025,800.20/1,539,963.90 = 646,720.20/x
  3. Step 3: Cross multiply
    1,025,800.20x = 1,539,963.90 × 646,720.20
  4. Step 4: Simplify right side
    1,025,800.20x = 995,925,761,400.78
  5. Step 5: Solve for x
    x = 995,925,761,400.78/1,025,800.20
  6. Step 6: Final answer
    x = 970,876.94

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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.