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Finding the Fourth Proportional to 560,202.98, 773,145.46 and 318,521.76

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Solution

The fourth proportional to 560,202.98, 773,145.46 and 318,521.76 is: 439,597.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,202.98 : 773,145.46 = 318,521.76 : x
  2. Step 2: Convert to fraction form
    560,202.98/773,145.46 = 318,521.76/x
  3. Step 3: Cross multiply
    560,202.98x = 773,145.46 × 318,521.76
  4. Step 4: Simplify right side
    560,202.98x = 246,263,652,655.21
  5. Step 5: Solve for x
    x = 246,263,652,655.21/560,202.98
  6. Step 6: Final answer
    x = 439,597.18

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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.