Home / 617,848.20-926,772.30-218,485.80

Finding the Fourth Proportional to 617,848.20, 926,772.30 and 218,485.80

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Solution

The fourth proportional to 617,848.20, 926,772.30 and 218,485.80 is: 327,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,848.20 : 926,772.30 = 218,485.80 : x
  2. Step 2: Convert to fraction form
    617,848.20/926,772.30 = 218,485.80/x
  3. Step 3: Cross multiply
    617,848.20x = 926,772.30 × 218,485.80
  4. Step 4: Simplify right side
    617,848.20x = 202,486,587,383.34
  5. Step 5: Solve for x
    x = 202,486,587,383.34/617,848.20
  6. Step 6: Final answer
    x = 327,728.70

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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.