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Finding the Fourth Proportional to 560,471.17, 773,467.25 and 318,788.50

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Solution

The fourth proportional to 560,471.17, 773,467.25 and 318,788.50 is: 439,937.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,471.17 : 773,467.25 = 318,788.50 : x
  2. Step 2: Convert to fraction form
    560,471.17/773,467.25 = 318,788.50/x
  3. Step 3: Cross multiply
    560,471.17x = 773,467.25 × 318,788.50
  4. Step 4: Simplify right side
    560,471.17x = 246,572,464,426.63
  5. Step 5: Solve for x
    x = 246,572,464,426.63/560,471.17
  6. Step 6: Final answer
    x = 439,937.82

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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.