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Finding the Fourth Proportional to 2,020,624.04, 2,788,447.46 and 1,115,206.04

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Solution

The fourth proportional to 2,020,624.04, 2,788,447.46 and 1,115,206.04 is: 1,538,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020,624.04 : 2,788,447.46 = 1,115,206.04 : x
  2. Step 2: Convert to fraction form
    2,020,624.04/2,788,447.46 = 1,115,206.04/x
  3. Step 3: Cross multiply
    2,020,624.04x = 2,788,447.46 × 1,115,206.04
  4. Step 4: Simplify right side
    2,020,624.04x = 3,109,693,449,614.66
  5. Step 5: Solve for x
    x = 3,109,693,449,614.66/2,020,624.04
  6. Step 6: Final answer
    x = 1,538,976.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.