Home / 778,300.11-1,074,080.85-451,588.43

Finding the Fourth Proportional to 778,300.11, 1,074,080.85 and 451,588.43

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Solution

The fourth proportional to 778,300.11, 1,074,080.85 and 451,588.43 is: 623,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,300.11 : 1,074,080.85 = 451,588.43 : x
  2. Step 2: Convert to fraction form
    778,300.11/1,074,080.85 = 451,588.43/x
  3. Step 3: Cross multiply
    778,300.11x = 1,074,080.85 × 451,588.43
  4. Step 4: Simplify right side
    778,300.11x = 485,042,479,374.16
  5. Step 5: Solve for x
    x = 485,042,479,374.16/778,300.11
  6. Step 6: Final answer
    x = 623,207.52

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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.