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Finding the Fourth Proportional to 633,914.64, 874,672.92 and 375,677.76

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Solution

The fourth proportional to 633,914.64, 874,672.92 and 375,677.76 is: 518,358.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,914.64 : 874,672.92 = 375,677.76 : x
  2. Step 2: Convert to fraction form
    633,914.64/874,672.92 = 375,677.76/x
  3. Step 3: Cross multiply
    633,914.64x = 874,672.92 × 375,677.76
  4. Step 4: Simplify right side
    633,914.64x = 328,595,163,318.26
  5. Step 5: Solve for x
    x = 328,595,163,318.26/633,914.64
  6. Step 6: Final answer
    x = 518,358.69

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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.