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Finding the Fourth Proportional to 666,344.98, 999,516.66 and 217,065.12

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Solution

The fourth proportional to 666,344.98, 999,516.66 and 217,065.12 is: 325,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,344.98 : 999,516.66 = 217,065.12 : x
  2. Step 2: Convert to fraction form
    666,344.98/999,516.66 = 217,065.12/x
  3. Step 3: Cross multiply
    666,344.98x = 999,516.66 × 217,065.12
  4. Step 4: Simplify right side
    666,344.98x = 216,960,203,744.90
  5. Step 5: Solve for x
    x = 216,960,203,744.90/666,344.98
  6. Step 6: Final answer
    x = 325,597.42

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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.