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Finding the Fourth Proportional to 579,271.84, 867,776.57 and 275,233.31

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Solution

The fourth proportional to 579,271.84, 867,776.57 and 275,233.31 is: 412,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,271.84 : 867,776.57 = 275,233.31 : x
  2. Step 2: Convert to fraction form
    579,271.84/867,776.57 = 275,233.31/x
  3. Step 3: Cross multiply
    579,271.84x = 867,776.57 × 275,233.31
  4. Step 4: Simplify right side
    579,271.84x = 238,841,016,827.16
  5. Step 5: Solve for x
    x = 238,841,016,827.16/579,271.84
  6. Step 6: Final answer
    x = 412,312.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.