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Finding the Fourth Proportional to 2,020,627.04, 2,788,451.60 and 1,115,209.04

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Solution

The fourth proportional to 2,020,627.04, 2,788,451.60 and 1,115,209.04 is: 1,538,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020,627.04 : 2,788,451.60 = 1,115,209.04 : x
  2. Step 2: Convert to fraction form
    2,020,627.04/2,788,451.60 = 1,115,209.04/x
  3. Step 3: Cross multiply
    2,020,627.04x = 2,788,451.60 × 1,115,209.04
  4. Step 4: Simplify right side
    2,020,627.04x = 3,109,706,431,922.46
  5. Step 5: Solve for x
    x = 3,109,706,431,922.46/2,020,627.04
  6. Step 6: Final answer
    x = 1,538,980.91

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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.