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Finding the Fourth Proportional to 867,171.60, 1,299,007.80 and 601,232.40

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Solution

The fourth proportional to 867,171.60, 1,299,007.80 and 601,232.40 is: 900,635.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,171.60 : 1,299,007.80 = 601,232.40 : x
  2. Step 2: Convert to fraction form
    867,171.60/1,299,007.80 = 601,232.40/x
  3. Step 3: Cross multiply
    867,171.60x = 1,299,007.80 × 601,232.40
  4. Step 4: Simplify right side
    867,171.60x = 781,005,577,212.72
  5. Step 5: Solve for x
    x = 781,005,577,212.72/867,171.60
  6. Step 6: Final answer
    x = 900,635.56

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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.