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Finding the Fourth Proportional to 875,771.90, 1,313,657.85 and 804,913.10

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Solution

The fourth proportional to 875,771.90, 1,313,657.85 and 804,913.10 is: 1,207,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,771.90 : 1,313,657.85 = 804,913.10 : x
  2. Step 2: Convert to fraction form
    875,771.90/1,313,657.85 = 804,913.10/x
  3. Step 3: Cross multiply
    875,771.90x = 1,313,657.85 × 804,913.10
  4. Step 4: Simplify right side
    875,771.90x = 1,057,380,412,382.84
  5. Step 5: Solve for x
    x = 1,057,380,412,382.84/875,771.90
  6. Step 6: Final answer
    x = 1,207,369.65

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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.