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Finding the Fourth Proportional to 6,649,329.40, 9,949,110.90 and 4,409,841.40

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Solution

The fourth proportional to 6,649,329.40, 9,949,110.90 and 4,409,841.40 is: 6,598,259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649,329.40 : 9,949,110.90 = 4,409,841.40 : x
  2. Step 2: Convert to fraction form
    6,649,329.40/9,949,110.90 = 4,409,841.40/x
  3. Step 3: Cross multiply
    6,649,329.40x = 9,949,110.90 × 4,409,841.40
  4. Step 4: Simplify right side
    6,649,329.40x = 43,874,001,140,011.27
  5. Step 5: Solve for x
    x = 43,874,001,140,011.27/6,649,329.40
  6. Step 6: Final answer
    x = 6,598,259.54

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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.