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Finding the Fourth Proportional to 475,716.72, 656,833.48 and 306,246.08

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Solution

The fourth proportional to 475,716.72, 656,833.48 and 306,246.08 is: 422,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,716.72 : 656,833.48 = 306,246.08 : x
  2. Step 2: Convert to fraction form
    475,716.72/656,833.48 = 306,246.08/x
  3. Step 3: Cross multiply
    475,716.72x = 656,833.48 × 306,246.08
  4. Step 4: Simplify right side
    475,716.72x = 201,152,678,462.76
  5. Step 5: Solve for x
    x = 201,152,678,462.76/475,716.72
  6. Step 6: Final answer
    x = 422,841.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.