Home / 819,645.91-1,131,116.29-457,092.68

Finding the Fourth Proportional to 819,645.91, 1,131,116.29 and 457,092.68

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Solution

The fourth proportional to 819,645.91, 1,131,116.29 and 457,092.68 is: 630,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,645.91 : 1,131,116.29 = 457,092.68 : x
  2. Step 2: Convert to fraction form
    819,645.91/1,131,116.29 = 457,092.68/x
  3. Step 3: Cross multiply
    819,645.91x = 1,131,116.29 × 457,092.68
  4. Step 4: Simplify right side
    819,645.91x = 517,024,976,899.84
  5. Step 5: Solve for x
    x = 517,024,976,899.84/819,645.91
  6. Step 6: Final answer
    x = 630,790.65

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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.