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Finding the Fourth Proportional to 617,818.80, 926,728.20 and 262,844.40

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Solution

The fourth proportional to 617,818.80, 926,728.20 and 262,844.40 is: 394,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,818.80 : 926,728.20 = 262,844.40 : x
  2. Step 2: Convert to fraction form
    617,818.80/926,728.20 = 262,844.40/x
  3. Step 3: Cross multiply
    617,818.80x = 926,728.20 × 262,844.40
  4. Step 4: Simplify right side
    617,818.80x = 243,585,317,692.08
  5. Step 5: Solve for x
    x = 243,585,317,692.08/617,818.80
  6. Step 6: Final answer
    x = 394,266.60

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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.