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Finding the Fourth Proportional to 292,463.72, 438,870.36 and 268,669.16

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Solution

The fourth proportional to 292,463.72, 438,870.36 and 268,669.16 is: 403,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,463.72 : 438,870.36 = 268,669.16 : x
  2. Step 2: Convert to fraction form
    292,463.72/438,870.36 = 268,669.16/x
  3. Step 3: Cross multiply
    292,463.72x = 438,870.36 × 268,669.16
  4. Step 4: Simplify right side
    292,463.72x = 117,910,930,970.10
  5. Step 5: Solve for x
    x = 117,910,930,970.10/292,463.72
  6. Step 6: Final answer
    x = 403,164.30

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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.