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Finding the Fourth Proportional to 632,571.05, 872,969.85 and 346,091.15

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Solution

The fourth proportional to 632,571.05, 872,969.85 and 346,091.15 is: 477,617.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,571.05 : 872,969.85 = 346,091.15 : x
  2. Step 2: Convert to fraction form
    632,571.05/872,969.85 = 346,091.15/x
  3. Step 3: Cross multiply
    632,571.05x = 872,969.85 × 346,091.15
  4. Step 4: Simplify right side
    632,571.05x = 302,127,139,301.83
  5. Step 5: Solve for x
    x = 302,127,139,301.83/632,571.05
  6. Step 6: Final answer
    x = 477,617.71

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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.