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Finding the Fourth Proportional to 564,693.20, 779,277.94 and 310,060.80

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Solution

The fourth proportional to 564,693.20, 779,277.94 and 310,060.80 is: 427,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,693.20 : 779,277.94 = 310,060.80 : x
  2. Step 2: Convert to fraction form
    564,693.20/779,277.94 = 310,060.80/x
  3. Step 3: Cross multiply
    564,693.20x = 779,277.94 × 310,060.80
  4. Step 4: Simplify right side
    564,693.20x = 241,623,541,498.75
  5. Step 5: Solve for x
    x = 241,623,541,498.75/564,693.20
  6. Step 6: Final answer
    x = 427,884.63

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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.