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Finding the Fourth Proportional to 560,775.72, 773,871.66 and 306,131.16

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Solution

The fourth proportional to 560,775.72, 773,871.66 and 306,131.16 is: 422,461.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,775.72 : 773,871.66 = 306,131.16 : x
  2. Step 2: Convert to fraction form
    560,775.72/773,871.66 = 306,131.16/x
  3. Step 3: Cross multiply
    560,775.72x = 773,871.66 × 306,131.16
  4. Step 4: Simplify right side
    560,775.72x = 236,906,228,966.93
  5. Step 5: Solve for x
    x = 236,906,228,966.93/560,775.72
  6. Step 6: Final answer
    x = 422,461.64

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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.