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Finding the Fourth Proportional to 564,852.20, 779,493.21 and 306,726.84

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Solution

The fourth proportional to 564,852.20, 779,493.21 and 306,726.84 is: 423,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,852.20 : 779,493.21 = 306,726.84 : x
  2. Step 2: Convert to fraction form
    564,852.20/779,493.21 = 306,726.84/x
  3. Step 3: Cross multiply
    564,852.20x = 779,493.21 × 306,726.84
  4. Step 4: Simplify right side
    564,852.20x = 239,091,489,104.76
  5. Step 5: Solve for x
    x = 239,091,489,104.76/564,852.20
  6. Step 6: Final answer
    x = 423,281.51

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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.