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Finding the Fourth Proportional to 553,893.24, 830,507.64 and 253,998.12

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Solution

The fourth proportional to 553,893.24, 830,507.64 and 253,998.12 is: 380,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,893.24 : 830,507.64 = 253,998.12 : x
  2. Step 2: Convert to fraction form
    553,893.24/830,507.64 = 253,998.12/x
  3. Step 3: Cross multiply
    553,893.24x = 830,507.64 × 253,998.12
  4. Step 4: Simplify right side
    553,893.24x = 210,947,379,205.64
  5. Step 5: Solve for x
    x = 210,947,379,205.64/553,893.24
  6. Step 6: Final answer
    x = 380,844.83

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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.