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Finding the Fourth Proportional to 662,143.70, 993,215.55 and 241,721.30

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Solution

The fourth proportional to 662,143.70, 993,215.55 and 241,721.30 is: 362,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,143.70 : 993,215.55 = 241,721.30 : x
  2. Step 2: Convert to fraction form
    662,143.70/993,215.55 = 241,721.30/x
  3. Step 3: Cross multiply
    662,143.70x = 993,215.55 × 241,721.30
  4. Step 4: Simplify right side
    662,143.70x = 240,081,353,926.22
  5. Step 5: Solve for x
    x = 240,081,353,926.22/662,143.70
  6. Step 6: Final answer
    x = 362,581.95

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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.