Home / 813,036.38-1,121,999.22-450,465.95

Finding the Fourth Proportional to 813,036.38, 1,121,999.22 and 450,465.95

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Solution

The fourth proportional to 813,036.38, 1,121,999.22 and 450,465.95 is: 621,648.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,036.38 : 1,121,999.22 = 450,465.95 : x
  2. Step 2: Convert to fraction form
    813,036.38/1,121,999.22 = 450,465.95/x
  3. Step 3: Cross multiply
    813,036.38x = 1,121,999.22 × 450,465.95
  4. Step 4: Simplify right side
    813,036.38x = 505,422,438,926.56
  5. Step 5: Solve for x
    x = 505,422,438,926.56/813,036.38
  6. Step 6: Final answer
    x = 621,648.00

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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.