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Finding the Fourth Proportional to 560,714.40, 773,758.85 and 318,974.22

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Solution

The fourth proportional to 560,714.40, 773,758.85 and 318,974.22 is: 440,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,714.40 : 773,758.85 = 318,974.22 : x
  2. Step 2: Convert to fraction form
    560,714.40/773,758.85 = 318,974.22/x
  3. Step 3: Cross multiply
    560,714.40x = 773,758.85 × 318,974.22
  4. Step 4: Simplify right side
    560,714.40x = 246,809,124,051.98
  5. Step 5: Solve for x
    x = 246,809,124,051.98/560,714.40
  6. Step 6: Final answer
    x = 440,169.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.