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Finding the Fourth Proportional to 5,776,477.80, 8,664,716.70 and 5,328,580.20

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Solution

The fourth proportional to 5,776,477.80, 8,664,716.70 and 5,328,580.20 is: 7,992,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776,477.80 : 8,664,716.70 = 5,328,580.20 : x
  2. Step 2: Convert to fraction form
    5,776,477.80/8,664,716.70 = 5,328,580.20/x
  3. Step 3: Cross multiply
    5,776,477.80x = 8,664,716.70 × 5,328,580.20
  4. Step 4: Simplify right side
    5,776,477.80x = 46,170,637,846,229.34
  5. Step 5: Solve for x
    x = 46,170,637,846,229.34/5,776,477.80
  6. Step 6: Final answer
    x = 7,992,870.30

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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.