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Finding the Fourth Proportional to 352,963.95, 487,108.92 and 200,031.90

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Solution

The fourth proportional to 352,963.95, 487,108.92 and 200,031.90 is: 276,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,963.95 : 487,108.92 = 200,031.90 : x
  2. Step 2: Convert to fraction form
    352,963.95/487,108.92 = 200,031.90/x
  3. Step 3: Cross multiply
    352,963.95x = 487,108.92 × 200,031.90
  4. Step 4: Simplify right side
    352,963.95x = 97,437,322,774.55
  5. Step 5: Solve for x
    x = 97,437,322,774.55/352,963.95
  6. Step 6: Final answer
    x = 276,054.60

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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.