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Finding the Fourth Proportional to 706,343.45, 1,059,515.17 and 207,707.45

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Solution

The fourth proportional to 706,343.45, 1,059,515.17 and 207,707.45 is: 311,561.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,343.45 : 1,059,515.17 = 207,707.45 : x
  2. Step 2: Convert to fraction form
    706,343.45/1,059,515.17 = 207,707.45/x
  3. Step 3: Cross multiply
    706,343.45x = 1,059,515.17 × 207,707.45
  4. Step 4: Simplify right side
    706,343.45x = 220,069,188,380.17
  5. Step 5: Solve for x
    x = 220,069,188,380.17/706,343.45
  6. Step 6: Final answer
    x = 311,561.17

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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.