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Finding the Fourth Proportional to 560,205.47, 773,148.90 and 318,524.25

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Solution

The fourth proportional to 560,205.47, 773,148.90 and 318,524.25 is: 439,600.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,205.47 : 773,148.90 = 318,524.25 : x
  2. Step 2: Convert to fraction form
    560,205.47/773,148.90 = 318,524.25/x
  3. Step 3: Cross multiply
    560,205.47x = 773,148.90 × 318,524.25
  4. Step 4: Simplify right side
    560,205.47x = 246,266,673,510.83
  5. Step 5: Solve for x
    x = 246,266,673,510.83/560,205.47
  6. Step 6: Final answer
    x = 439,600.63

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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.