Home / 817,018.65-1,127,469.53-454,434.71

Finding the Fourth Proportional to 817,018.65, 1,127,469.53 and 454,434.71

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Solution

The fourth proportional to 817,018.65, 1,127,469.53 and 454,434.71 is: 627,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,018.65 : 1,127,469.53 = 454,434.71 : x
  2. Step 2: Convert to fraction form
    817,018.65/1,127,469.53 = 454,434.71/x
  3. Step 3: Cross multiply
    817,018.65x = 1,127,469.53 × 454,434.71
  4. Step 4: Simplify right side
    817,018.65x = 512,361,284,398.13
  5. Step 5: Solve for x
    x = 512,361,284,398.13/817,018.65
  6. Step 6: Final answer
    x = 627,110.88

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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.