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Finding the Fourth Proportional to 374,866.40, 562,429.20 and 361,906.40

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Solution

The fourth proportional to 374,866.40, 562,429.20 and 361,906.40 is: 542,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,866.40 : 562,429.20 = 361,906.40 : x
  2. Step 2: Convert to fraction form
    374,866.40/562,429.20 = 361,906.40/x
  3. Step 3: Cross multiply
    374,866.40x = 562,429.20 × 361,906.40
  4. Step 4: Simplify right side
    374,866.40x = 203,546,727,026.88
  5. Step 5: Solve for x
    x = 203,546,727,026.88/374,866.40
  6. Step 6: Final answer
    x = 542,984.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.