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Finding the Fourth Proportional to 617,344.80, 926,017.20 and 196,663.20

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Solution

The fourth proportional to 617,344.80, 926,017.20 and 196,663.20 is: 294,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,344.80 : 926,017.20 = 196,663.20 : x
  2. Step 2: Convert to fraction form
    617,344.80/926,017.20 = 196,663.20/x
  3. Step 3: Cross multiply
    617,344.80x = 926,017.20 × 196,663.20
  4. Step 4: Simplify right side
    617,344.80x = 182,113,505,807.04
  5. Step 5: Solve for x
    x = 182,113,505,807.04/617,344.80
  6. Step 6: Final answer
    x = 294,994.80

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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.