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Finding the Fourth Proportional to 633,261.43, 873,874.52 and 346,776.58

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Solution

The fourth proportional to 633,261.43, 873,874.52 and 346,776.58 is: 478,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,261.43 : 873,874.52 = 346,776.58 : x
  2. Step 2: Convert to fraction form
    633,261.43/873,874.52 = 346,776.58/x
  3. Step 3: Cross multiply
    633,261.43x = 873,874.52 × 346,776.58
  4. Step 4: Simplify right side
    633,261.43x = 303,039,217,394.74
  5. Step 5: Solve for x
    x = 303,039,217,394.74/633,261.43
  6. Step 6: Final answer
    x = 478,537.30

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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.