Home / 819,718.01-1,131,208.66-457,142.29

Finding the Fourth Proportional to 819,718.01, 1,131,208.66 and 457,142.29

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Solution

The fourth proportional to 819,718.01, 1,131,208.66 and 457,142.29 is: 630,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,718.01 : 1,131,208.66 = 457,142.29 : x
  2. Step 2: Convert to fraction form
    819,718.01/1,131,208.66 = 457,142.29/x
  3. Step 3: Cross multiply
    819,718.01x = 1,131,208.66 × 457,142.29
  4. Step 4: Simplify right side
    819,718.01x = 517,123,317,124.73
  5. Step 5: Solve for x
    x = 517,123,317,124.73/819,718.01
  6. Step 6: Final answer
    x = 630,855.13

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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.