Home / 819,709.17-1,131,196.42-457,133.41

Finding the Fourth Proportional to 819,709.17, 1,131,196.42 and 457,133.41

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Solution

The fourth proportional to 819,709.17, 1,131,196.42 and 457,133.41 is: 630,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,709.17 : 1,131,196.42 = 457,133.41 : x
  2. Step 2: Convert to fraction form
    819,709.17/1,131,196.42 = 457,133.41/x
  3. Step 3: Cross multiply
    819,709.17x = 1,131,196.42 × 457,133.41
  4. Step 4: Simplify right side
    819,709.17x = 517,107,676,854.39
  5. Step 5: Solve for x
    x = 517,107,676,854.39/819,709.17
  6. Step 6: Final answer
    x = 630,842.86

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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.