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Finding the Fourth Proportional to 632,894.20, 873,402.20 and 346,408.14

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Solution

The fourth proportional to 632,894.20, 873,402.20 and 346,408.14 is: 478,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,894.20 : 873,402.20 = 346,408.14 : x
  2. Step 2: Convert to fraction form
    632,894.20/873,402.20 = 346,408.14/x
  3. Step 3: Cross multiply
    632,894.20x = 873,402.20 × 346,408.14
  4. Step 4: Simplify right side
    632,894.20x = 302,553,631,451.81
  5. Step 5: Solve for x
    x = 302,553,631,451.81/632,894.20
  6. Step 6: Final answer
    x = 478,047.72

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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.