Home / 819,958.16-1,131,429.12-457,339.52

Finding the Fourth Proportional to 819,958.16, 1,131,429.12 and 457,339.52

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Solution

The fourth proportional to 819,958.16, 1,131,429.12 and 457,339.52 is: 631,065.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,958.16 : 1,131,429.12 = 457,339.52 : x
  2. Step 2: Convert to fraction form
    819,958.16/1,131,429.12 = 457,339.52/x
  3. Step 3: Cross multiply
    819,958.16x = 1,131,429.12 × 457,339.52
  4. Step 4: Simplify right side
    819,958.16x = 517,447,250,654.82
  5. Step 5: Solve for x
    x = 517,447,250,654.82/819,958.16
  6. Step 6: Final answer
    x = 631,065.43

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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.