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Finding the Fourth Proportional to 533,964.10, 800,946.15 and 159,987.10

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Solution

The fourth proportional to 533,964.10, 800,946.15 and 159,987.10 is: 239,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,964.10 : 800,946.15 = 159,987.10 : x
  2. Step 2: Convert to fraction form
    533,964.10/800,946.15 = 159,987.10/x
  3. Step 3: Cross multiply
    533,964.10x = 800,946.15 × 159,987.10
  4. Step 4: Simplify right side
    533,964.10x = 128,141,051,794.67
  5. Step 5: Solve for x
    x = 128,141,051,794.67/533,964.10
  6. Step 6: Final answer
    x = 239,980.65

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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.