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Finding the Fourth Proportional to 9,978,046.30, 14,967,069.45 and 4,309,342.30

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Solution

The fourth proportional to 9,978,046.30, 14,967,069.45 and 4,309,342.30 is: 6,464,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,046.30 : 14,967,069.45 = 4,309,342.30 : x
  2. Step 2: Convert to fraction form
    9,978,046.30/14,967,069.45 = 4,309,342.30/x
  3. Step 3: Cross multiply
    9,978,046.30x = 14,967,069.45 × 4,309,342.30
  4. Step 4: Simplify right side
    9,978,046.30x = 64,498,225,487,922.73
  5. Step 5: Solve for x
    x = 64,498,225,487,922.73/9,978,046.30
  6. Step 6: Final answer
    x = 6,464,013.45

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Similar ratio
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1.5x scale

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.