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Finding the Fourth Proportional to 617,881.80, 926,822.70 and 197,200.20

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Solution

The fourth proportional to 617,881.80, 926,822.70 and 197,200.20 is: 295,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,881.80 : 926,822.70 = 197,200.20 : x
  2. Step 2: Convert to fraction form
    617,881.80/926,822.70 = 197,200.20/x
  3. Step 3: Cross multiply
    617,881.80x = 926,822.70 × 197,200.20
  4. Step 4: Simplify right side
    617,881.80x = 182,769,621,804.54
  5. Step 5: Solve for x
    x = 182,769,621,804.54/617,881.80
  6. Step 6: Final answer
    x = 295,800.30

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Similar ratio
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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.