Home / 828,153.50-1,241,344.49-378,200.12

Finding the Fourth Proportional to 828,153.50, 1,241,344.49 and 378,200.12

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Solution

The fourth proportional to 828,153.50, 1,241,344.49 and 378,200.12 is: 566,895.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,153.50 : 1,241,344.49 = 378,200.12 : x
  2. Step 2: Convert to fraction form
    828,153.50/1,241,344.49 = 378,200.12/x
  3. Step 3: Cross multiply
    828,153.50x = 1,241,344.49 × 378,200.12
  4. Step 4: Simplify right side
    828,153.50x = 469,476,626,981.62
  5. Step 5: Solve for x
    x = 469,476,626,981.62/828,153.50
  6. Step 6: Final answer
    x = 566,895.67

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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.