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Finding the Fourth Proportional to 617,905.20, 926,166.60 and 262,858.80

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Solution

The fourth proportional to 617,905.20, 926,166.60 and 262,858.80 is: 393,994.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,905.20 : 926,166.60 = 262,858.80 : x
  2. Step 2: Convert to fraction form
    617,905.20/926,166.60 = 262,858.80/x
  3. Step 3: Cross multiply
    617,905.20x = 926,166.60 × 262,858.80
  4. Step 4: Simplify right side
    617,905.20x = 243,451,041,076.08
  5. Step 5: Solve for x
    x = 243,451,041,076.08/617,905.20
  6. Step 6: Final answer
    x = 393,994.16

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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.