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Finding the Fourth Proportional to 6,641,996.40, 9,941,999.40 and 4,752,428.40

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Solution

The fourth proportional to 6,641,996.40, 9,941,999.40 and 4,752,428.40 is: 7,113,620.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641,996.40 : 9,941,999.40 = 4,752,428.40 : x
  2. Step 2: Convert to fraction form
    6,641,996.40/9,941,999.40 = 4,752,428.40/x
  3. Step 3: Cross multiply
    6,641,996.40x = 9,941,999.40 × 4,752,428.40
  4. Step 4: Simplify right side
    6,641,996.40x = 47,248,640,301,342.97
  5. Step 5: Solve for x
    x = 47,248,640,301,342.97/6,641,996.40
  6. Step 6: Final answer
    x = 7,113,620.28

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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.