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Finding the Fourth Proportional to 316,311.80, 474,224.70 and 158,653.40

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Solution

The fourth proportional to 316,311.80, 474,224.70 and 158,653.40 is: 237,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,311.80 : 474,224.70 = 158,653.40 : x
  2. Step 2: Convert to fraction form
    316,311.80/474,224.70 = 158,653.40/x
  3. Step 3: Cross multiply
    316,311.80x = 474,224.70 × 158,653.40
  4. Step 4: Simplify right side
    316,311.80x = 75,237,361,018.98
  5. Step 5: Solve for x
    x = 75,237,361,018.98/316,311.80
  6. Step 6: Final answer
    x = 237,858.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.