Home / 1,120,234.20-1,545,657.47-636,761.28

Finding the Fourth Proportional to 1,120,234.20, 1,545,657.47 and 636,761.28

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Solution

The fourth proportional to 1,120,234.20, 1,545,657.47 and 636,761.28 is: 878,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,234.20 : 1,545,657.47 = 636,761.28 : x
  2. Step 2: Convert to fraction form
    1,120,234.20/1,545,657.47 = 636,761.28/x
  3. Step 3: Cross multiply
    1,120,234.20x = 1,545,657.47 × 636,761.28
  4. Step 4: Simplify right side
    1,120,234.20x = 984,214,825,854.96
  5. Step 5: Solve for x
    x = 984,214,825,854.96/1,120,234.20
  6. Step 6: Final answer
    x = 878,579.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.