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Finding the Fourth Proportional to 656,400.60, 984,006.90 and 456,816.60

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Solution

The fourth proportional to 656,400.60, 984,006.90 and 456,816.60 is: 684,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,400.60 : 984,006.90 = 456,816.60 : x
  2. Step 2: Convert to fraction form
    656,400.60/984,006.90 = 456,816.60/x
  3. Step 3: Cross multiply
    656,400.60x = 984,006.90 × 456,816.60
  4. Step 4: Simplify right side
    656,400.60x = 449,510,686,434.54
  5. Step 5: Solve for x
    x = 449,510,686,434.54/656,400.60
  6. Step 6: Final answer
    x = 684,811.51

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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.