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Finding the Fourth Proportional to 633,771.92, 874,688.28 and 408,073.52

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Solution

The fourth proportional to 633,771.92, 874,688.28 and 408,073.52 is: 563,194.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,771.92 : 874,688.28 = 408,073.52 : x
  2. Step 2: Convert to fraction form
    633,771.92/874,688.28 = 408,073.52/x
  3. Step 3: Cross multiply
    633,771.92x = 874,688.28 × 408,073.52
  4. Step 4: Simplify right side
    633,771.92x = 356,937,125,322.35
  5. Step 5: Solve for x
    x = 356,937,125,322.35/633,771.92
  6. Step 6: Final answer
    x = 563,194.92

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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.