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Finding the Fourth Proportional to 633,925.77, 874,839.45 and 347,443.35

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Solution

The fourth proportional to 633,925.77, 874,839.45 and 347,443.35 is: 479,483.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,925.77 : 874,839.45 = 347,443.35 : x
  2. Step 2: Convert to fraction form
    633,925.77/874,839.45 = 347,443.35/x
  3. Step 3: Cross multiply
    633,925.77x = 874,839.45 × 347,443.35
  4. Step 4: Simplify right side
    633,925.77x = 303,957,149,220.16
  5. Step 5: Solve for x
    x = 303,957,149,220.16/633,925.77
  6. Step 6: Final answer
    x = 479,483.82

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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.