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Finding the Fourth Proportional to 560,712.92, 773,777.04 and 318,994.96

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Solution

The fourth proportional to 560,712.92, 773,777.04 and 318,994.96 is: 440,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,712.92 : 773,777.04 = 318,994.96 : x
  2. Step 2: Convert to fraction form
    560,712.92/773,777.04 = 318,994.96/x
  3. Step 3: Cross multiply
    560,712.92x = 773,777.04 × 318,994.96
  4. Step 4: Simplify right side
    560,712.92x = 246,830,975,923.72
  5. Step 5: Solve for x
    x = 246,830,975,923.72/560,712.92
  6. Step 6: Final answer
    x = 440,209.18

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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.