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Finding the Fourth Proportional to 363,863.40, 545,795.10 and 349,866.60

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Solution

The fourth proportional to 363,863.40, 545,795.10 and 349,866.60 is: 524,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,863.40 : 545,795.10 = 349,866.60 : x
  2. Step 2: Convert to fraction form
    363,863.40/545,795.10 = 349,866.60/x
  3. Step 3: Cross multiply
    363,863.40x = 545,795.10 × 349,866.60
  4. Step 4: Simplify right side
    363,863.40x = 190,955,475,933.66
  5. Step 5: Solve for x
    x = 190,955,475,933.66/363,863.40
  6. Step 6: Final answer
    x = 524,799.90

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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.