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Finding the Fourth Proportional to 262,885.40, 393,809.70 and 151,947.80

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Solution

The fourth proportional to 262,885.40, 393,809.70 and 151,947.80 is: 227,622.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,885.40 : 393,809.70 = 151,947.80 : x
  2. Step 2: Convert to fraction form
    262,885.40/393,809.70 = 151,947.80/x
  3. Step 3: Cross multiply
    262,885.40x = 393,809.70 × 151,947.80
  4. Step 4: Simplify right side
    262,885.40x = 59,838,517,533.66
  5. Step 5: Solve for x
    x = 59,838,517,533.66/262,885.40
  6. Step 6: Final answer
    x = 227,622.06

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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.