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Finding the Fourth Proportional to 564,233.46, 778,637.22 and 306,109.98

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Solution

The fourth proportional to 564,233.46, 778,637.22 and 306,109.98 is: 422,429.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,233.46 : 778,637.22 = 306,109.98 : x
  2. Step 2: Convert to fraction form
    564,233.46/778,637.22 = 306,109.98/x
  3. Step 3: Cross multiply
    564,233.46x = 778,637.22 × 306,109.98
  4. Step 4: Simplify right side
    564,233.46x = 238,348,623,841.46
  5. Step 5: Solve for x
    x = 238,348,623,841.46/564,233.46
  6. Step 6: Final answer
    x = 422,429.08

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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.