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Finding the Fourth Proportional to 353,256.66, 487,350.45 and 200,262.42

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Solution

The fourth proportional to 353,256.66, 487,350.45 and 200,262.42 is: 276,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,256.66 : 487,350.45 = 200,262.42 : x
  2. Step 2: Convert to fraction form
    353,256.66/487,350.45 = 200,262.42/x
  3. Step 3: Cross multiply
    353,256.66x = 487,350.45 × 200,262.42
  4. Step 4: Simplify right side
    353,256.66x = 97,597,980,505.09
  5. Step 5: Solve for x
    x = 97,597,980,505.09/353,256.66
  6. Step 6: Final answer
    x = 276,280.65

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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.