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Finding the Fourth Proportional to 946,809.60, 1,417,449.60 and 847,276.80

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Solution

The fourth proportional to 946,809.60, 1,417,449.60 and 847,276.80 is: 1,268,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,809.60 : 1,417,449.60 = 847,276.80 : x
  2. Step 2: Convert to fraction form
    946,809.60/1,417,449.60 = 847,276.80/x
  3. Step 3: Cross multiply
    946,809.60x = 1,417,449.60 × 847,276.80
  4. Step 4: Simplify right side
    946,809.60x = 1,200,972,161,249.28
  5. Step 5: Solve for x
    x = 1,200,972,161,249.28/946,809.60
  6. Step 6: Final answer
    x = 1,268,441.05

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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.