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Finding the Fourth Proportional to 408,554.88, 563,528.80 and 265,058.56

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Solution

The fourth proportional to 408,554.88, 563,528.80 and 265,058.56 is: 365,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,554.88 : 563,528.80 = 265,058.56 : x
  2. Step 2: Convert to fraction form
    408,554.88/563,528.80 = 265,058.56/x
  3. Step 3: Cross multiply
    408,554.88x = 563,528.80 × 265,058.56
  4. Step 4: Simplify right side
    408,554.88x = 149,368,132,246.53
  5. Step 5: Solve for x
    x = 149,368,132,246.53/408,554.88
  6. Step 6: Final answer
    x = 365,601.15

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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.