Home / 821,651.65-1,133,937.96-454,120.88

Finding the Fourth Proportional to 821,651.65, 1,133,937.96 and 454,120.88

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Solution

The fourth proportional to 821,651.65, 1,133,937.96 and 454,120.88 is: 626,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,651.65 : 1,133,937.96 = 454,120.88 : x
  2. Step 2: Convert to fraction form
    821,651.65/1,133,937.96 = 454,120.88/x
  3. Step 3: Cross multiply
    821,651.65x = 1,133,937.96 × 454,120.88
  4. Step 4: Simplify right side
    821,651.65x = 514,944,904,900.64
  5. Step 5: Solve for x
    x = 514,944,904,900.64/821,651.65
  6. Step 6: Final answer
    x = 626,719.25

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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.