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Finding the Fourth Proportional to 560,156.56, 773,082.48 and 318,475.60

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Solution

The fourth proportional to 560,156.56, 773,082.48 and 318,475.60 is: 439,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,156.56 : 773,082.48 = 318,475.60 : x
  2. Step 2: Convert to fraction form
    560,156.56/773,082.48 = 318,475.60/x
  3. Step 3: Cross multiply
    560,156.56x = 773,082.48 × 318,475.60
  4. Step 4: Simplify right side
    560,156.56x = 246,207,906,667.49
  5. Step 5: Solve for x
    x = 246,207,906,667.49/560,156.56
  6. Step 6: Final answer
    x = 439,534.10

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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.