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Finding the Fourth Proportional to 4,479,640.95, 6,719,461.43 and 1,113,847.95

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Solution

The fourth proportional to 4,479,640.95, 6,719,461.43 and 1,113,847.95 is: 1,670,771.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479,640.95 : 6,719,461.43 = 1,113,847.95 : x
  2. Step 2: Convert to fraction form
    4,479,640.95/6,719,461.43 = 1,113,847.95/x
  3. Step 3: Cross multiply
    4,479,640.95x = 6,719,461.43 × 1,113,847.95
  4. Step 4: Simplify right side
    4,479,640.95x = 7,484,458,333,340.33
  5. Step 5: Solve for x
    x = 7,484,458,333,340.33/4,479,640.95
  6. Step 6: Final answer
    x = 1,670,771.93

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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.