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Finding the Fourth Proportional to 617,913.80, 926,870.70 and 197,232.20

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Solution

The fourth proportional to 617,913.80, 926,870.70 and 197,232.20 is: 295,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,913.80 : 926,870.70 = 197,232.20 : x
  2. Step 2: Convert to fraction form
    617,913.80/926,870.70 = 197,232.20/x
  3. Step 3: Cross multiply
    617,913.80x = 926,870.70 × 197,232.20
  4. Step 4: Simplify right side
    617,913.80x = 182,808,747,276.54
  5. Step 5: Solve for x
    x = 182,808,747,276.54/617,913.80
  6. Step 6: Final answer
    x = 295,848.30

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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.