Home / 828,153.87-1,241,345.04-378,200.49

Finding the Fourth Proportional to 828,153.87, 1,241,345.04 and 378,200.49

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Solution

The fourth proportional to 828,153.87, 1,241,345.04 and 378,200.49 is: 566,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,153.87 : 1,241,345.04 = 378,200.49 : x
  2. Step 2: Convert to fraction form
    828,153.87/1,241,345.04 = 378,200.49/x
  3. Step 3: Cross multiply
    828,153.87x = 1,241,345.04 × 378,200.49
  4. Step 4: Simplify right side
    828,153.87x = 469,477,302,387.07
  5. Step 5: Solve for x
    x = 469,477,302,387.07/828,153.87
  6. Step 6: Final answer
    x = 566,896.22

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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.