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Finding the Fourth Proportional to 4,940,452.86, 7,412,798.80 and 1,909,947.12

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Solution

The fourth proportional to 4,940,452.86, 7,412,798.80 and 1,909,947.12 is: 2,865,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940,452.86 : 7,412,798.80 = 1,909,947.12 : x
  2. Step 2: Convert to fraction form
    4,940,452.86/7,412,798.80 = 1,909,947.12/x
  3. Step 3: Cross multiply
    4,940,452.86x = 7,412,798.80 × 1,909,947.12
  4. Step 4: Simplify right side
    4,940,452.86x = 14,158,053,719,199.46
  5. Step 5: Solve for x
    x = 14,158,053,719,199.46/4,940,452.86
  6. Step 6: Final answer
    x = 2,865,740.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.