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Finding the Fourth Proportional to 427,602.78, 590,154.42 and 246,279.84

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Solution

The fourth proportional to 427,602.78, 590,154.42 and 246,279.84 is: 339,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,602.78 : 590,154.42 = 246,279.84 : x
  2. Step 2: Convert to fraction form
    427,602.78/590,154.42 = 246,279.84/x
  3. Step 3: Cross multiply
    427,602.78x = 590,154.42 × 246,279.84
  4. Step 4: Simplify right side
    427,602.78x = 145,343,136,132.89
  5. Step 5: Solve for x
    x = 145,343,136,132.89/427,602.78
  6. Step 6: Final answer
    x = 339,902.22

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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.