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Finding the Fourth Proportional to 6,603,206.40, 9,904,809.60 and 6,015,340.80

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Solution

The fourth proportional to 6,603,206.40, 9,904,809.60 and 6,015,340.80 is: 9,023,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603,206.40 : 9,904,809.60 = 6,015,340.80 : x
  2. Step 2: Convert to fraction form
    6,603,206.40/9,904,809.60 = 6,015,340.80/x
  3. Step 3: Cross multiply
    6,603,206.40x = 9,904,809.60 × 6,015,340.80
  4. Step 4: Simplify right side
    6,603,206.40x = 59,580,805,303,111.68
  5. Step 5: Solve for x
    x = 59,580,805,303,111.68/6,603,206.40
  6. Step 6: Final answer
    x = 9,023,011.20

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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.