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Finding the Fourth Proportional to 289,556.40, 434,334.60 and 184,839.60

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Solution

The fourth proportional to 289,556.40, 434,334.60 and 184,839.60 is: 277,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,556.40 : 434,334.60 = 184,839.60 : x
  2. Step 2: Convert to fraction form
    289,556.40/434,334.60 = 184,839.60/x
  3. Step 3: Cross multiply
    289,556.40x = 434,334.60 × 184,839.60
  4. Step 4: Simplify right side
    289,556.40x = 80,282,233,730.16
  5. Step 5: Solve for x
    x = 80,282,233,730.16/289,556.40
  6. Step 6: Final answer
    x = 277,259.40

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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.