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Finding the Fourth Proportional to 289,928.60, 434,892.90 and 183,640.40

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Solution

The fourth proportional to 289,928.60, 434,892.90 and 183,640.40 is: 275,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,928.60 : 434,892.90 = 183,640.40 : x
  2. Step 2: Convert to fraction form
    289,928.60/434,892.90 = 183,640.40/x
  3. Step 3: Cross multiply
    289,928.60x = 434,892.90 × 183,640.40
  4. Step 4: Simplify right side
    289,928.60x = 79,863,906,113.16
  5. Step 5: Solve for x
    x = 79,863,906,113.16/289,928.60
  6. Step 6: Final answer
    x = 275,460.60

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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.