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Finding the Fourth Proportional to 561,928.60, 842,892.90 and 325,878.40

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Solution

The fourth proportional to 561,928.60, 842,892.90 and 325,878.40 is: 488,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,928.60 : 842,892.90 = 325,878.40 : x
  2. Step 2: Convert to fraction form
    561,928.60/842,892.90 = 325,878.40/x
  3. Step 3: Cross multiply
    561,928.60x = 842,892.90 × 325,878.40
  4. Step 4: Simplify right side
    561,928.60x = 274,680,589,623.36
  5. Step 5: Solve for x
    x = 274,680,589,623.36/561,928.60
  6. Step 6: Final answer
    x = 488,817.60

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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.