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Finding the Fourth Proportional to 560,347.88, 773,276.41 and 318,630.47

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Solution

The fourth proportional to 560,347.88, 773,276.41 and 318,630.47 is: 439,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,347.88 : 773,276.41 = 318,630.47 : x
  2. Step 2: Convert to fraction form
    560,347.88/773,276.41 = 318,630.47/x
  3. Step 3: Cross multiply
    560,347.88x = 773,276.41 × 318,630.47
  4. Step 4: Simplify right side
    560,347.88x = 246,389,425,958.21
  5. Step 5: Solve for x
    x = 246,389,425,958.21/560,347.88
  6. Step 6: Final answer
    x = 439,707.96

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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.