Home / 817,674.07-1,128,378.92-455,098.06

Finding the Fourth Proportional to 817,674.07, 1,128,378.92 and 455,098.06

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Solution

The fourth proportional to 817,674.07, 1,128,378.92 and 455,098.06 is: 628,029.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,674.07 : 1,128,378.92 = 455,098.06 : x
  2. Step 2: Convert to fraction form
    817,674.07/1,128,378.92 = 455,098.06/x
  3. Step 3: Cross multiply
    817,674.07x = 1,128,378.92 × 455,098.06
  4. Step 4: Simplify right side
    817,674.07x = 513,523,057,436.90
  5. Step 5: Solve for x
    x = 513,523,057,436.90/817,674.07
  6. Step 6: Final answer
    x = 628,029.04

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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.