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Finding the Fourth Proportional to 400,854.04, 601,336.28 and 134,690.60

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Solution

The fourth proportional to 400,854.04, 601,336.28 and 134,690.60 is: 202,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,854.04 : 601,336.28 = 134,690.60 : x
  2. Step 2: Convert to fraction form
    400,854.04/601,336.28 = 134,690.60/x
  3. Step 3: Cross multiply
    400,854.04x = 601,336.28 × 134,690.60
  4. Step 4: Simplify right side
    400,854.04x = 80,994,344,354.97
  5. Step 5: Solve for x
    x = 80,994,344,354.97/400,854.04
  6. Step 6: Final answer
    x = 202,054.45

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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.