Home / 681,565.20-940,555.02-375,641.70

Finding the Fourth Proportional to 681,565.20, 940,555.02 and 375,641.70

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Solution

The fourth proportional to 681,565.20, 940,555.02 and 375,641.70 is: 518,382.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,565.20 : 940,555.02 = 375,641.70 : x
  2. Step 2: Convert to fraction form
    681,565.20/940,555.02 = 375,641.70/x
  3. Step 3: Cross multiply
    681,565.20x = 940,555.02 × 375,641.70
  4. Step 4: Simplify right side
    681,565.20x = 353,311,686,656.33
  5. Step 5: Solve for x
    x = 353,311,686,656.33/681,565.20
  6. Step 6: Final answer
    x = 518,382.81

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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.