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Finding the Fourth Proportional to 441,417, 609,113.34 and 247,780.38

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Solution

The fourth proportional to 441,417, 609,113.34 and 247,780.38 is: 341,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,417 : 609,113.34 = 247,780.38 : x
  2. Step 2: Convert to fraction form
    441,417/609,113.34 = 247,780.38/x
  3. Step 3: Cross multiply
    441,417x = 609,113.34 × 247,780.38
  4. Step 4: Simplify right side
    441,417x = 150,926,334,848.27
  5. Step 5: Solve for x
    x = 150,926,334,848.27/441,417
  6. Step 6: Final answer
    x = 341,913.28

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1.5x scale

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.