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Finding the Fourth Proportional to 3,662,248.40, 5,495,705.40 and 2,145,928.40

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Solution

The fourth proportional to 3,662,248.40, 5,495,705.40 and 2,145,928.40 is: 3,220,259.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,662,248.40 : 5,495,705.40 = 2,145,928.40 : x
  2. Step 2: Convert to fraction form
    3,662,248.40/5,495,705.40 = 2,145,928.40/x
  3. Step 3: Cross multiply
    3,662,248.40x = 5,495,705.40 × 2,145,928.40
  4. Step 4: Simplify right side
    3,662,248.40x = 11,793,390,295,893.36
  5. Step 5: Solve for x
    x = 11,793,390,295,893.36/3,662,248.40
  6. Step 6: Final answer
    x = 3,220,259.53

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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.