Home / 817,021.28-1,127,473.16-454,437.33

Finding the Fourth Proportional to 817,021.28, 1,127,473.16 and 454,437.33

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Solution

The fourth proportional to 817,021.28, 1,127,473.16 and 454,437.33 is: 627,114.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,021.28 : 1,127,473.16 = 454,437.33 : x
  2. Step 2: Convert to fraction form
    817,021.28/1,127,473.16 = 454,437.33/x
  3. Step 3: Cross multiply
    817,021.28x = 1,127,473.16 × 454,437.33
  4. Step 4: Simplify right side
    817,021.28x = 512,365,890,204.88
  5. Step 5: Solve for x
    x = 512,365,890,204.88/817,021.28
  6. Step 6: Final answer
    x = 627,114.50

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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.