Home / 817,515.69-1,128,179.16-454,954.83

Finding the Fourth Proportional to 817,515.69, 1,128,179.16 and 454,954.83

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Solution

The fourth proportional to 817,515.69, 1,128,179.16 and 454,954.83 is: 627,841.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,515.69 : 1,128,179.16 = 454,954.83 : x
  2. Step 2: Convert to fraction form
    817,515.69/1,128,179.16 = 454,954.83/x
  3. Step 3: Cross multiply
    817,515.69x = 1,128,179.16 × 454,954.83
  4. Step 4: Simplify right side
    817,515.69x = 513,270,557,947.34
  5. Step 5: Solve for x
    x = 513,270,557,947.34/817,515.69
  6. Step 6: Final answer
    x = 627,841.84

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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.