Home / 813,400.72-1,122,560.17-450,938.27

Finding the Fourth Proportional to 813,400.72, 1,122,560.17 and 450,938.27

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Solution

The fourth proportional to 813,400.72, 1,122,560.17 and 450,938.27 is: 622,332.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,400.72 : 1,122,560.17 = 450,938.27 : x
  2. Step 2: Convert to fraction form
    813,400.72/1,122,560.17 = 450,938.27/x
  3. Step 3: Cross multiply
    813,400.72x = 1,122,560.17 × 450,938.27
  4. Step 4: Simplify right side
    813,400.72x = 506,205,342,709.76
  5. Step 5: Solve for x
    x = 506,205,342,709.76/813,400.72
  6. Step 6: Final answer
    x = 622,332.06

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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.