Home / 819,883.29-1,131,435.98-457,306.87

Finding the Fourth Proportional to 819,883.29, 1,131,435.98 and 457,306.87

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Solution

The fourth proportional to 819,883.29, 1,131,435.98 and 457,306.87 is: 631,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,883.29 : 1,131,435.98 = 457,306.87 : x
  2. Step 2: Convert to fraction form
    819,883.29/1,131,435.98 = 457,306.87/x
  3. Step 3: Cross multiply
    819,883.29x = 1,131,435.98 × 457,306.87
  4. Step 4: Simplify right side
    819,883.29x = 517,413,450,451.81
  5. Step 5: Solve for x
    x = 517,413,450,451.81/819,883.29
  6. Step 6: Final answer
    x = 631,081.83

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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.