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Finding the Fourth Proportional to 353,216.37, 487,423.74 and 200,264.85

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Solution

The fourth proportional to 353,216.37, 487,423.74 and 200,264.85 is: 276,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,216.37 : 487,423.74 = 200,264.85 : x
  2. Step 2: Convert to fraction form
    353,216.37/487,423.74 = 200,264.85/x
  3. Step 3: Cross multiply
    353,216.37x = 487,423.74 × 200,264.85
  4. Step 4: Simplify right side
    353,216.37x = 97,613,842,177.54
  5. Step 5: Solve for x
    x = 97,613,842,177.54/353,216.37
  6. Step 6: Final answer
    x = 276,357.07

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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.