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Finding the Fourth Proportional to 6,399,104.40, 9,603,905.40 and 6,189,152.40

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Solution

The fourth proportional to 6,399,104.40, 9,603,905.40 and 6,189,152.40 is: 9,288,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399,104.40 : 9,603,905.40 = 6,189,152.40 : x
  2. Step 2: Convert to fraction form
    6,399,104.40/9,603,905.40 = 6,189,152.40/x
  3. Step 3: Cross multiply
    6,399,104.40x = 9,603,905.40 × 6,189,152.40
  4. Step 4: Simplify right side
    6,399,104.40x = 59,440,034,155,782.97
  5. Step 5: Solve for x
    x = 59,440,034,155,782.97/6,399,104.40
  6. Step 6: Final answer
    x = 9,288,805.19

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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.