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Finding the Fourth Proportional to 437,982, 604,415.16 and 236,778

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Solution

The fourth proportional to 437,982, 604,415.16 and 236,778 is: 326,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,982 : 604,415.16 = 236,778 : x
  2. Step 2: Convert to fraction form
    437,982/604,415.16 = 236,778/x
  3. Step 3: Cross multiply
    437,982x = 604,415.16 × 236,778
  4. Step 4: Simplify right side
    437,982x = 143,112,212,754.48
  5. Step 5: Solve for x
    x = 143,112,212,754.48/437,982
  6. Step 6: Final answer
    x = 326,753.64

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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.