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Finding the Fourth Proportional to 360,863.91, 497,940.06 and 199,718.57

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Solution

The fourth proportional to 360,863.91, 497,940.06 and 199,718.57 is: 275,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,863.91 : 497,940.06 = 199,718.57 : x
  2. Step 2: Convert to fraction form
    360,863.91/497,940.06 = 199,718.57/x
  3. Step 3: Cross multiply
    360,863.91x = 497,940.06 × 199,718.57
  4. Step 4: Simplify right side
    360,863.91x = 99,447,877,973.76
  5. Step 5: Solve for x
    x = 99,447,877,973.76/360,863.91
  6. Step 6: Final answer
    x = 275,582.78

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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.