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Finding the Fourth Proportional to 907,399.40, 1,361,099.10 and 893,402.60

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Solution

The fourth proportional to 907,399.40, 1,361,099.10 and 893,402.60 is: 1,340,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,399.40 : 1,361,099.10 = 893,402.60 : x
  2. Step 2: Convert to fraction form
    907,399.40/1,361,099.10 = 893,402.60/x
  3. Step 3: Cross multiply
    907,399.40x = 1,361,099.10 × 893,402.60
  4. Step 4: Simplify right side
    907,399.40x = 1,216,009,474,797.66
  5. Step 5: Solve for x
    x = 1,216,009,474,797.66/907,399.40
  6. Step 6: Final answer
    x = 1,340,103.90

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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.