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Finding the Fourth Proportional to 374,806.40, 562,209.60 and 217,439.60

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Solution

The fourth proportional to 374,806.40, 562,209.60 and 217,439.60 is: 326,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,806.40 : 562,209.60 = 217,439.60 : x
  2. Step 2: Convert to fraction form
    374,806.40/562,209.60 = 217,439.60/x
  3. Step 3: Cross multiply
    374,806.40x = 562,209.60 × 217,439.60
  4. Step 4: Simplify right side
    374,806.40x = 122,246,630,540.16
  5. Step 5: Solve for x
    x = 122,246,630,540.16/374,806.40
  6. Step 6: Final answer
    x = 326,159.40

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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.