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Finding the Fourth Proportional to 560,761.20, 773,746.88 and 319,029.66

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Solution

The fourth proportional to 560,761.20, 773,746.88 and 319,029.66 is: 440,202.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,761.20 : 773,746.88 = 319,029.66 : x
  2. Step 2: Convert to fraction form
    560,761.20/773,746.88 = 319,029.66/x
  3. Step 3: Cross multiply
    560,761.20x = 773,746.88 × 319,029.66
  4. Step 4: Simplify right side
    560,761.20x = 246,848,202,457.31
  5. Step 5: Solve for x
    x = 246,848,202,457.31/560,761.20
  6. Step 6: Final answer
    x = 440,202.00

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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.