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Finding the Fourth Proportional to 406,573, 561,070.74 and 247,597

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Solution

The fourth proportional to 406,573, 561,070.74 and 247,597 is: 341,683.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,573 : 561,070.74 = 247,597 : x
  2. Step 2: Convert to fraction form
    406,573/561,070.74 = 247,597/x
  3. Step 3: Cross multiply
    406,573x = 561,070.74 × 247,597
  4. Step 4: Simplify right side
    406,573x = 138,919,432,011.78
  5. Step 5: Solve for x
    x = 138,919,432,011.78/406,573
  6. Step 6: Final answer
    x = 341,683.86

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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.