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Finding the Fourth Proportional to 353,514.46, 487,860.99 and 200,559.10

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Solution

The fourth proportional to 353,514.46, 487,860.99 and 200,559.10 is: 276,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,514.46 : 487,860.99 = 200,559.10 : x
  2. Step 2: Convert to fraction form
    353,514.46/487,860.99 = 200,559.10/x
  3. Step 3: Cross multiply
    353,514.46x = 487,860.99 × 200,559.10
  4. Step 4: Simplify right side
    353,514.46x = 97,844,960,990.59
  5. Step 5: Solve for x
    x = 97,844,960,990.59/353,514.46
  6. Step 6: Final answer
    x = 276,777.82

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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.