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Finding the Fourth Proportional to 1,173,106.02, 1,619,669.97 and 790,993.38

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Solution

The fourth proportional to 1,173,106.02, 1,619,669.97 and 790,993.38 is: 1,092,099.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,106.02 : 1,619,669.97 = 790,993.38 : x
  2. Step 2: Convert to fraction form
    1,173,106.02/1,619,669.97 = 790,993.38/x
  3. Step 3: Cross multiply
    1,173,106.02x = 1,619,669.97 × 790,993.38
  4. Step 4: Simplify right side
    1,173,106.02x = 1,281,148,224,054.80
  5. Step 5: Solve for x
    x = 1,281,148,224,054.80/1,173,106.02
  6. Step 6: Final answer
    x = 1,092,099.27

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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.