Home / 817,031.60-1,127,487.24-454,447.64

Finding the Fourth Proportional to 817,031.60, 1,127,487.24 and 454,447.64

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Solution

The fourth proportional to 817,031.60, 1,127,487.24 and 454,447.64 is: 627,128.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,031.60 : 1,127,487.24 = 454,447.64 : x
  2. Step 2: Convert to fraction form
    817,031.60/1,127,487.24 = 454,447.64/x
  3. Step 3: Cross multiply
    817,031.60x = 1,127,487.24 × 454,447.64
  4. Step 4: Simplify right side
    817,031.60x = 512,383,915,348.11
  5. Step 5: Solve for x
    x = 512,383,915,348.11/817,031.60
  6. Step 6: Final answer
    x = 627,128.64

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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.