Home / 817,003.28-1,127,448.31-454,419.33

Finding the Fourth Proportional to 817,003.28, 1,127,448.31 and 454,419.33

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Solution

The fourth proportional to 817,003.28, 1,127,448.31 and 454,419.33 is: 627,089.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,003.28 : 1,127,448.31 = 454,419.33 : x
  2. Step 2: Convert to fraction form
    817,003.28/1,127,448.31 = 454,419.33/x
  3. Step 3: Cross multiply
    817,003.28x = 1,127,448.31 × 454,419.33
  4. Step 4: Simplify right side
    817,003.28x = 512,334,305,639.83
  5. Step 5: Solve for x
    x = 512,334,305,639.83/817,003.28
  6. Step 6: Final answer
    x = 627,089.66

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Double scale
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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.