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Finding the Fourth Proportional to 633,501.64, 873,531.78 and 403,694.96

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Solution

The fourth proportional to 633,501.64, 873,531.78 and 403,694.96 is: 556,652.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,501.64 : 873,531.78 = 403,694.96 : x
  2. Step 2: Convert to fraction form
    633,501.64/873,531.78 = 403,694.96/x
  3. Step 3: Cross multiply
    633,501.64x = 873,531.78 × 403,694.96
  4. Step 4: Simplify right side
    633,501.64x = 352,640,371,104.31
  5. Step 5: Solve for x
    x = 352,640,371,104.31/633,501.64
  6. Step 6: Final answer
    x = 556,652.66

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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.