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Finding the Fourth Proportional to 400,834.80, 601,252.20 and 368,175.60

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Solution

The fourth proportional to 400,834.80, 601,252.20 and 368,175.60 is: 552,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,834.80 : 601,252.20 = 368,175.60 : x
  2. Step 2: Convert to fraction form
    400,834.80/601,252.20 = 368,175.60/x
  3. Step 3: Cross multiply
    400,834.80x = 601,252.20 × 368,175.60
  4. Step 4: Simplify right side
    400,834.80x = 221,366,389,486.32
  5. Step 5: Solve for x
    x = 221,366,389,486.32/400,834.80
  6. Step 6: Final answer
    x = 552,263.40

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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.