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Finding the Fourth Proportional to 666,349.43, 999,523.37 and 217,069.58

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Solution

The fourth proportional to 666,349.43, 999,523.37 and 217,069.58 is: 325,604.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,349.43 : 999,523.37 = 217,069.58 : x
  2. Step 2: Convert to fraction form
    666,349.43/999,523.37 = 217,069.58/x
  3. Step 3: Cross multiply
    666,349.43x = 999,523.37 × 217,069.58
  4. Step 4: Simplify right side
    666,349.43x = 216,966,113,128.47
  5. Step 5: Solve for x
    x = 216,966,113,128.47/666,349.43
  6. Step 6: Final answer
    x = 325,604.11

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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.