Home / 816,664.32-1,127,047.68-454,169.16

Finding the Fourth Proportional to 816,664.32, 1,127,047.68 and 454,169.16

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Solution

The fourth proportional to 816,664.32, 1,127,047.68 and 454,169.16 is: 626,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,664.32 : 1,127,047.68 = 454,169.16 : x
  2. Step 2: Convert to fraction form
    816,664.32/1,127,047.68 = 454,169.16/x
  3. Step 3: Cross multiply
    816,664.32x = 1,127,047.68 × 454,169.16
  4. Step 4: Simplify right side
    816,664.32x = 511,870,298,105.55
  5. Step 5: Solve for x
    x = 511,870,298,105.55/816,664.32
  6. Step 6: Final answer
    x = 626,781.76

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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.