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Finding the Fourth Proportional to 560,820.66, 773,903.22 and 306,122.64

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Solution

The fourth proportional to 560,820.66, 773,903.22 and 306,122.64 is: 422,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,820.66 : 773,903.22 = 306,122.64 : x
  2. Step 2: Convert to fraction form
    560,820.66/773,903.22 = 306,122.64/x
  3. Step 3: Cross multiply
    560,820.66x = 773,903.22 × 306,122.64
  4. Step 4: Simplify right side
    560,820.66x = 236,909,296,810.90
  5. Step 5: Solve for x
    x = 236,909,296,810.90/560,820.66
  6. Step 6: Final answer
    x = 422,433.25

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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.