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Finding the Fourth Proportional to 463,639.60, 695,286.60 and 322,980.40

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Solution

The fourth proportional to 463,639.60, 695,286.60 and 322,980.40 is: 484,350.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,639.60 : 695,286.60 = 322,980.40 : x
  2. Step 2: Convert to fraction form
    463,639.60/695,286.60 = 322,980.40/x
  3. Step 3: Cross multiply
    463,639.60x = 695,286.60 × 322,980.40
  4. Step 4: Simplify right side
    463,639.60x = 224,563,944,182.64
  5. Step 5: Solve for x
    x = 224,563,944,182.64/463,639.60
  6. Step 6: Final answer
    x = 484,350.22

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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.