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Finding the Fourth Proportional to 632,991.16, 873,529.28 and 346,529.70

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Solution

The fourth proportional to 632,991.16, 873,529.28 and 346,529.70 is: 478,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,991.16 : 873,529.28 = 346,529.70 : x
  2. Step 2: Convert to fraction form
    632,991.16/873,529.28 = 346,529.70/x
  3. Step 3: Cross multiply
    632,991.16x = 873,529.28 × 346,529.70
  4. Step 4: Simplify right side
    632,991.16x = 302,703,838,906.45
  5. Step 5: Solve for x
    x = 302,703,838,906.45/632,991.16
  6. Step 6: Final answer
    x = 478,211.79

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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.