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Finding the Fourth Proportional to 316,690.92, 437,025.11 and 180,722.43

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Solution

The fourth proportional to 316,690.92, 437,025.11 and 180,722.43 is: 249,392.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,690.92 : 437,025.11 = 180,722.43 : x
  2. Step 2: Convert to fraction form
    316,690.92/437,025.11 = 180,722.43/x
  3. Step 3: Cross multiply
    316,690.92x = 437,025.11 × 180,722.43
  4. Step 4: Simplify right side
    316,690.92x = 78,980,238,946.61
  5. Step 5: Solve for x
    x = 78,980,238,946.61/316,690.92
  6. Step 6: Final answer
    x = 249,392.18

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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.