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Finding the Fourth Proportional to 6,644,443.80, 9,966,665.70 and 3,774,662.40

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Solution

The fourth proportional to 6,644,443.80, 9,966,665.70 and 3,774,662.40 is: 5,661,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644,443.80 : 9,966,665.70 = 3,774,662.40 : x
  2. Step 2: Convert to fraction form
    6,644,443.80/9,966,665.70 = 3,774,662.40/x
  3. Step 3: Cross multiply
    6,644,443.80x = 9,966,665.70 × 3,774,662.40
  4. Step 4: Simplify right side
    6,644,443.80x = 37,620,798,271,159.68
  5. Step 5: Solve for x
    x = 37,620,798,271,159.68/6,644,443.80
  6. Step 6: Final answer
    x = 5,661,993.60

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Double scale
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Similar ratio
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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.