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Finding the Fourth Proportional to 659,314.60, 988,874.70 and 186,047.80

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Solution

The fourth proportional to 659,314.60, 988,874.70 and 186,047.80 is: 279,044.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,314.60 : 988,874.70 = 186,047.80 : x
  2. Step 2: Convert to fraction form
    659,314.60/988,874.70 = 186,047.80/x
  3. Step 3: Cross multiply
    659,314.60x = 988,874.70 × 186,047.80
  4. Step 4: Simplify right side
    659,314.60x = 183,977,962,410.66
  5. Step 5: Solve for x
    x = 183,977,962,410.66/659,314.60
  6. Step 6: Final answer
    x = 279,044.27

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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.