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Finding the Fourth Proportional to 560,315.95, 773,232.43 and 318,598.53

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Solution

The fourth proportional to 560,315.95, 773,232.43 and 318,598.53 is: 439,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,315.95 : 773,232.43 = 318,598.53 : x
  2. Step 2: Convert to fraction form
    560,315.95/773,232.43 = 318,598.53/x
  3. Step 3: Cross multiply
    560,315.95x = 773,232.43 × 318,598.53
  4. Step 4: Simplify right side
    560,315.95x = 246,350,715,546.33
  5. Step 5: Solve for x
    x = 246,350,715,546.33/560,315.95
  6. Step 6: Final answer
    x = 439,663.94

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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.