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Finding the Fourth Proportional to 468,935.60, 703,403.40 and 448,458.80

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Solution

The fourth proportional to 468,935.60, 703,403.40 and 448,458.80 is: 672,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,935.60 : 703,403.40 = 448,458.80 : x
  2. Step 2: Convert to fraction form
    468,935.60/703,403.40 = 448,458.80/x
  3. Step 3: Cross multiply
    468,935.60x = 703,403.40 × 448,458.80
  4. Step 4: Simplify right side
    468,935.60x = 315,447,444,679.92
  5. Step 5: Solve for x
    x = 315,447,444,679.92/468,935.60
  6. Step 6: Final answer
    x = 672,688.20

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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.