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Finding the Fourth Proportional to 633,486.16, 874,179.84 and 347,007.52

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Solution

The fourth proportional to 633,486.16, 874,179.84 and 347,007.52 is: 478,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,486.16 : 874,179.84 = 347,007.52 : x
  2. Step 2: Convert to fraction form
    633,486.16/874,179.84 = 347,007.52/x
  3. Step 3: Cross multiply
    633,486.16x = 874,179.84 × 347,007.52
  4. Step 4: Simplify right side
    633,486.16x = 303,346,978,312.40
  5. Step 5: Solve for x
    x = 303,346,978,312.40/633,486.16
  6. Step 6: Final answer
    x = 478,853.36

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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.