Home / 817,329.51-1,127,920.33-454,768.65

Finding the Fourth Proportional to 817,329.51, 1,127,920.33 and 454,768.65

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Solution

The fourth proportional to 817,329.51, 1,127,920.33 and 454,768.65 is: 627,583.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,329.51 : 1,127,920.33 = 454,768.65 : x
  2. Step 2: Convert to fraction form
    817,329.51/1,127,920.33 = 454,768.65/x
  3. Step 3: Cross multiply
    817,329.51x = 1,127,920.33 × 454,768.65
  4. Step 4: Simplify right side
    817,329.51x = 512,942,805,781.66
  5. Step 5: Solve for x
    x = 512,942,805,781.66/817,329.51
  6. Step 6: Final answer
    x = 627,583.86

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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.