Home / 840,773.61-1,160,317.73-636,500.97

Finding the Fourth Proportional to 840,773.61, 1,160,317.73 and 636,500.97

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Solution

The fourth proportional to 840,773.61, 1,160,317.73 and 636,500.97 is: 878,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,773.61 : 1,160,317.73 = 636,500.97 : x
  2. Step 2: Convert to fraction form
    840,773.61/1,160,317.73 = 636,500.97/x
  3. Step 3: Cross multiply
    840,773.61x = 1,160,317.73 × 636,500.97
  4. Step 4: Simplify right side
    840,773.61x = 738,543,357,470.69
  5. Step 5: Solve for x
    x = 738,543,357,470.69/840,773.61
  6. Step 6: Final answer
    x = 878,409.30

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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.