Home / 819,858.80-1,131,407.12-457,306.14

Finding the Fourth Proportional to 819,858.80, 1,131,407.12 and 457,306.14

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Solution

The fourth proportional to 819,858.80, 1,131,407.12 and 457,306.14 is: 631,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,858.80 : 1,131,407.12 = 457,306.14 : x
  2. Step 2: Convert to fraction form
    819,858.80/1,131,407.12 = 457,306.14/x
  3. Step 3: Cross multiply
    819,858.80x = 1,131,407.12 × 457,306.14
  4. Step 4: Simplify right side
    819,858.80x = 517,399,422,815.72
  5. Step 5: Solve for x
    x = 517,399,422,815.72/819,858.80
  6. Step 6: Final answer
    x = 631,083.58

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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.