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Finding the Fourth Proportional to 316,158.56, 436,265.52 and 188,816.48

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Solution

The fourth proportional to 316,158.56, 436,265.52 and 188,816.48 is: 260,546.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,158.56 : 436,265.52 = 188,816.48 : x
  2. Step 2: Convert to fraction form
    316,158.56/436,265.52 = 188,816.48/x
  3. Step 3: Cross multiply
    316,158.56x = 436,265.52 × 188,816.48
  4. Step 4: Simplify right side
    316,158.56x = 82,374,119,831.77
  5. Step 5: Solve for x
    x = 82,374,119,831.77/316,158.56
  6. Step 6: Final answer
    x = 260,546.86

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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.