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Finding the Fourth Proportional to 6,603,628.60, 9,905,442.90 and 4,796,729.20

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Solution

The fourth proportional to 6,603,628.60, 9,905,442.90 and 4,796,729.20 is: 7,195,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603,628.60 : 9,905,442.90 = 4,796,729.20 : x
  2. Step 2: Convert to fraction form
    6,603,628.60/9,905,442.90 = 4,796,729.20/x
  3. Step 3: Cross multiply
    6,603,628.60x = 9,905,442.90 × 4,796,729.20
  4. Step 4: Simplify right side
    6,603,628.60x = 47,513,727,197,362.69
  5. Step 5: Solve for x
    x = 47,513,727,197,362.69/6,603,628.60
  6. Step 6: Final answer
    x = 7,195,093.80

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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.