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Finding the Fourth Proportional to 469,866.40, 703,359.60 and 258,858.40

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Solution

The fourth proportional to 469,866.40, 703,359.60 and 258,858.40 is: 387,494.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,866.40 : 703,359.60 = 258,858.40 : x
  2. Step 2: Convert to fraction form
    469,866.40/703,359.60 = 258,858.40/x
  3. Step 3: Cross multiply
    469,866.40x = 703,359.60 × 258,858.40
  4. Step 4: Simplify right side
    469,866.40x = 182,070,540,680.64
  5. Step 5: Solve for x
    x = 182,070,540,680.64/469,866.40
  6. Step 6: Final answer
    x = 387,494.28

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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.