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Finding the Fourth Proportional to 666,552.32, 999,932.16 and 217,168.56

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Solution

The fourth proportional to 666,552.32, 999,932.16 and 217,168.56 is: 325,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,552.32 : 999,932.16 = 217,168.56 : x
  2. Step 2: Convert to fraction form
    666,552.32/999,932.16 = 217,168.56/x
  3. Step 3: Cross multiply
    666,552.32x = 999,932.16 × 217,168.56
  4. Step 4: Simplify right side
    666,552.32x = 217,153,827,284.89
  5. Step 5: Solve for x
    x = 217,153,827,284.89/666,552.32
  6. Step 6: Final answer
    x = 325,786.62

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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.