Home / 827,005.42-1,240,757.16-258,363.55

Finding the Fourth Proportional to 827,005.42, 1,240,757.16 and 258,363.55

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Solution

The fourth proportional to 827,005.42, 1,240,757.16 and 258,363.55 is: 387,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,005.42 : 1,240,757.16 = 258,363.55 : x
  2. Step 2: Convert to fraction form
    827,005.42/1,240,757.16 = 258,363.55/x
  3. Step 3: Cross multiply
    827,005.42x = 1,240,757.16 × 258,363.55
  4. Step 4: Simplify right side
    827,005.42x = 320,566,424,545.52
  5. Step 5: Solve for x
    x = 320,566,424,545.52/827,005.42
  6. Step 6: Final answer
    x = 387,623.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.