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Finding the Fourth Proportional to 3,266,658.40, 4,890,656.40 and 2,930,735.20

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Solution

The fourth proportional to 3,266,658.40, 4,890,656.40 and 2,930,735.20 is: 4,387,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266,658.40 : 4,890,656.40 = 2,930,735.20 : x
  2. Step 2: Convert to fraction form
    3,266,658.40/4,890,656.40 = 2,930,735.20/x
  3. Step 3: Cross multiply
    3,266,658.40x = 4,890,656.40 × 2,930,735.20
  4. Step 4: Simplify right side
    3,266,658.40x = 14,333,218,862,585.28
  5. Step 5: Solve for x
    x = 14,333,218,862,585.28/3,266,658.40
  6. Step 6: Final answer
    x = 4,387,731.16

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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.