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Finding the Fourth Proportional to 374,809.20, 562,213.80 and 108,578.40

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Solution

The fourth proportional to 374,809.20, 562,213.80 and 108,578.40 is: 162,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,809.20 : 562,213.80 = 108,578.40 : x
  2. Step 2: Convert to fraction form
    374,809.20/562,213.80 = 108,578.40/x
  3. Step 3: Cross multiply
    374,809.20x = 562,213.80 × 108,578.40
  4. Step 4: Simplify right side
    374,809.20x = 61,044,274,861.92
  5. Step 5: Solve for x
    x = 61,044,274,861.92/374,809.20
  6. Step 6: Final answer
    x = 162,867.60

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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.