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Finding the Fourth Proportional to 617,875.80, 926,813.70 and 197,194.20

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Solution

The fourth proportional to 617,875.80, 926,813.70 and 197,194.20 is: 295,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,875.80 : 926,813.70 = 197,194.20 : x
  2. Step 2: Convert to fraction form
    617,875.80/926,813.70 = 197,194.20/x
  3. Step 3: Cross multiply
    617,875.80x = 926,813.70 × 197,194.20
  4. Step 4: Simplify right side
    617,875.80x = 182,762,286,120.54
  5. Step 5: Solve for x
    x = 182,762,286,120.54/617,875.80
  6. Step 6: Final answer
    x = 295,791.30

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Double scale
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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.