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Finding the Fourth Proportional to 316,473.68, 437,208 and 207,836.12

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Solution

The fourth proportional to 316,473.68, 437,208 and 207,836.12 is: 287,125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,473.68 : 437,208 = 207,836.12 : x
  2. Step 2: Convert to fraction form
    316,473.68/437,208 = 207,836.12/x
  3. Step 3: Cross multiply
    316,473.68x = 437,208 × 207,836.12
  4. Step 4: Simplify right side
    316,473.68x = 90,867,614,352.96
  5. Step 5: Solve for x
    x = 90,867,614,352.96/316,473.68
  6. Step 6: Final answer
    x = 287,125.34

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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.