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Finding the Fourth Proportional to 706,234.60, 1,059,351.90 and 628,820.20

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Solution

The fourth proportional to 706,234.60, 1,059,351.90 and 628,820.20 is: 943,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,234.60 : 1,059,351.90 = 628,820.20 : x
  2. Step 2: Convert to fraction form
    706,234.60/1,059,351.90 = 628,820.20/x
  3. Step 3: Cross multiply
    706,234.60x = 1,059,351.90 × 628,820.20
  4. Step 4: Simplify right side
    706,234.60x = 666,141,873,628.38
  5. Step 5: Solve for x
    x = 666,141,873,628.38/706,234.60
  6. Step 6: Final answer
    x = 943,230.30

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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.