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Finding the Fourth Proportional to 406,572, 561,069.36 and 247,596

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Solution

The fourth proportional to 406,572, 561,069.36 and 247,596 is: 341,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,572 : 561,069.36 = 247,596 : x
  2. Step 2: Convert to fraction form
    406,572/561,069.36 = 247,596/x
  3. Step 3: Cross multiply
    406,572x = 561,069.36 × 247,596
  4. Step 4: Simplify right side
    406,572x = 138,918,529,258.56
  5. Step 5: Solve for x
    x = 138,918,529,258.56/406,572
  6. Step 6: Final answer
    x = 341,682.48

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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.