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Finding the Fourth Proportional to 560,229.28, 773,109.66 and 305,575.00

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Solution

The fourth proportional to 560,229.28, 773,109.66 and 305,575.00 is: 421,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,229.28 : 773,109.66 = 305,575.00 : x
  2. Step 2: Convert to fraction form
    560,229.28/773,109.66 = 305,575.00/x
  3. Step 3: Cross multiply
    560,229.28x = 773,109.66 × 305,575.00
  4. Step 4: Simplify right side
    560,229.28x = 236,242,983,567.63
  5. Step 5: Solve for x
    x = 236,242,983,567.63/560,229.28
  6. Step 6: Final answer
    x = 421,689.82

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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.