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Finding the Fourth Proportional to 353,018.31, 487,168.52 and 191,873.73

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Solution

The fourth proportional to 353,018.31, 487,168.52 and 191,873.73 is: 264,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,018.31 : 487,168.52 = 191,873.73 : x
  2. Step 2: Convert to fraction form
    353,018.31/487,168.52 = 191,873.73/x
  3. Step 3: Cross multiply
    353,018.31x = 487,168.52 × 191,873.73
  4. Step 4: Simplify right side
    353,018.31x = 93,474,841,070.98
  5. Step 5: Solve for x
    x = 93,474,841,070.98/353,018.31
  6. Step 6: Final answer
    x = 264,787.52

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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.