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Finding the Fourth Proportional to 400,617.39, 600,985.47 and 116,310.28

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Solution

The fourth proportional to 400,617.39, 600,985.47 and 116,310.28 is: 174,482.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,617.39 : 600,985.47 = 116,310.28 : x
  2. Step 2: Convert to fraction form
    400,617.39/600,985.47 = 116,310.28/x
  3. Step 3: Cross multiply
    400,617.39x = 600,985.47 × 116,310.28
  4. Step 4: Simplify right side
    400,617.39x = 69,900,788,352.18
  5. Step 5: Solve for x
    x = 69,900,788,352.18/400,617.39
  6. Step 6: Final answer
    x = 174,482.66

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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.