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Finding the Fourth Proportional to 9,798,657.20, 14,690,987.40 and 4,402,890.80

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Solution

The fourth proportional to 9,798,657.20, 14,690,987.40 and 4,402,890.80 is: 6,601,191.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,798,657.20 : 14,690,987.40 = 4,402,890.80 : x
  2. Step 2: Convert to fraction form
    9,798,657.20/14,690,987.40 = 4,402,890.80/x
  3. Step 3: Cross multiply
    9,798,657.20x = 14,690,987.40 × 4,402,890.80
  4. Step 4: Simplify right side
    9,798,657.20x = 64,682,813,266,375.92
  5. Step 5: Solve for x
    x = 64,682,813,266,375.92/9,798,657.20
  6. Step 6: Final answer
    x = 6,601,191.57

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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.