Home / 817,187.28-1,127,698.92-454,612.56

Finding the Fourth Proportional to 817,187.28, 1,127,698.92 and 454,612.56

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Solution

The fourth proportional to 817,187.28, 1,127,698.92 and 454,612.56 is: 627,354.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,187.28 : 1,127,698.92 = 454,612.56 : x
  2. Step 2: Convert to fraction form
    817,187.28/1,127,698.92 = 454,612.56/x
  3. Step 3: Cross multiply
    817,187.28x = 1,127,698.92 × 454,612.56
  4. Step 4: Simplify right side
    817,187.28x = 512,666,092,930.44
  5. Step 5: Solve for x
    x = 512,666,092,930.44/817,187.28
  6. Step 6: Final answer
    x = 627,354.47

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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.