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Finding the Fourth Proportional to 607,611.72, 838,501.48 and 335,679.66

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Solution

The fourth proportional to 607,611.72, 838,501.48 and 335,679.66 is: 463,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,611.72 : 838,501.48 = 335,679.66 : x
  2. Step 2: Convert to fraction form
    607,611.72/838,501.48 = 335,679.66/x
  3. Step 3: Cross multiply
    607,611.72x = 838,501.48 × 335,679.66
  4. Step 4: Simplify right side
    607,611.72x = 281,467,891,715.90
  5. Step 5: Solve for x
    x = 281,467,891,715.90/607,611.72
  6. Step 6: Final answer
    x = 463,236.44

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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.