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Finding the Fourth Proportional to 706,841.32, 1,059,490.62 and 347,259.88

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Solution

The fourth proportional to 706,841.32, 1,059,490.62 and 347,259.88 is: 520,510.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,841.32 : 1,059,490.62 = 347,259.88 : x
  2. Step 2: Convert to fraction form
    706,841.32/1,059,490.62 = 347,259.88/x
  3. Step 3: Cross multiply
    706,841.32x = 1,059,490.62 × 347,259.88
  4. Step 4: Simplify right side
    706,841.32x = 367,918,585,562.33
  5. Step 5: Solve for x
    x = 367,918,585,562.33/706,841.32
  6. Step 6: Final answer
    x = 520,510.86

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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.