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Finding the Fourth Proportional to 406,579, 561,079.02 and 247,603

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Solution

The fourth proportional to 406,579, 561,079.02 and 247,603 is: 341,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,579 : 561,079.02 = 247,603 : x
  2. Step 2: Convert to fraction form
    406,579/561,079.02 = 247,603/x
  3. Step 3: Cross multiply
    406,579x = 561,079.02 × 247,603
  4. Step 4: Simplify right side
    406,579x = 138,924,848,589.06
  5. Step 5: Solve for x
    x = 138,924,848,589.06/406,579
  6. Step 6: Final answer
    x = 341,692.14

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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.