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Finding the Fourth Proportional to 473,651.57, 653,928.83 and 308,237.15

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Solution

The fourth proportional to 473,651.57, 653,928.83 and 308,237.15 is: 425,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,651.57 : 653,928.83 = 308,237.15 : x
  2. Step 2: Convert to fraction form
    473,651.57/653,928.83 = 308,237.15/x
  3. Step 3: Cross multiply
    473,651.57x = 653,928.83 × 308,237.15
  4. Step 4: Simplify right side
    473,651.57x = 201,565,157,320.85
  5. Step 5: Solve for x
    x = 201,565,157,320.85/473,651.57
  6. Step 6: Final answer
    x = 425,555.77

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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.