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Finding the Fourth Proportional to 293,068.40, 438,436.20 and 254,058.80

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Solution

The fourth proportional to 293,068.40, 438,436.20 and 254,058.80 is: 380,077.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,068.40 : 438,436.20 = 254,058.80 : x
  2. Step 2: Convert to fraction form
    293,068.40/438,436.20 = 254,058.80/x
  3. Step 3: Cross multiply
    293,068.40x = 438,436.20 × 254,058.80
  4. Step 4: Simplify right side
    293,068.40x = 111,388,574,848.56
  5. Step 5: Solve for x
    x = 111,388,574,848.56/293,068.40
  6. Step 6: Final answer
    x = 380,077.06

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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.