Home / 817,009.78-1,127,457.29-454,425.83

Finding the Fourth Proportional to 817,009.78, 1,127,457.29 and 454,425.83

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Solution

The fourth proportional to 817,009.78, 1,127,457.29 and 454,425.83 is: 627,098.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,009.78 : 1,127,457.29 = 454,425.83 : x
  2. Step 2: Convert to fraction form
    817,009.78/1,127,457.29 = 454,425.83/x
  3. Step 3: Cross multiply
    817,009.78x = 1,127,457.29 × 454,425.83
  4. Step 4: Simplify right side
    817,009.78x = 512,345,712,525.67
  5. Step 5: Solve for x
    x = 512,345,712,525.67/817,009.78
  6. Step 6: Final answer
    x = 627,098.63

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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.