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Finding the Fourth Proportional to 418,703.42, 577,680.36 and 237,401.12

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Solution

The fourth proportional to 418,703.42, 577,680.36 and 237,401.12 is: 327,539.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,703.42 : 577,680.36 = 237,401.12 : x
  2. Step 2: Convert to fraction form
    418,703.42/577,680.36 = 237,401.12/x
  3. Step 3: Cross multiply
    418,703.42x = 577,680.36 × 237,401.12
  4. Step 4: Simplify right side
    418,703.42x = 137,141,961,577.60
  5. Step 5: Solve for x
    x = 137,141,961,577.60/418,703.42
  6. Step 6: Final answer
    x = 327,539.63

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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.