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Finding the Fourth Proportional to 262,422.75, 393,602.88 and 154,416.69

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Solution

The fourth proportional to 262,422.75, 393,602.88 and 154,416.69 is: 231,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,422.75 : 393,602.88 = 154,416.69 : x
  2. Step 2: Convert to fraction form
    262,422.75/393,602.88 = 154,416.69/x
  3. Step 3: Cross multiply
    262,422.75x = 393,602.88 × 154,416.69
  4. Step 4: Simplify right side
    262,422.75x = 60,778,853,904.07
  5. Step 5: Solve for x
    x = 60,778,853,904.07/262,422.75
  6. Step 6: Final answer
    x = 231,606.65

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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.