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Finding the Fourth Proportional to 633,973.47, 874,973.09 and 392,333.86

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Solution

The fourth proportional to 633,973.47, 874,973.09 and 392,333.86 is: 541,476.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,973.47 : 874,973.09 = 392,333.86 : x
  2. Step 2: Convert to fraction form
    633,973.47/874,973.09 = 392,333.86/x
  3. Step 3: Cross multiply
    633,973.47x = 874,973.09 × 392,333.86
  4. Step 4: Simplify right side
    633,973.47x = 343,281,570,776.66
  5. Step 5: Solve for x
    x = 343,281,570,776.66/633,973.47
  6. Step 6: Final answer
    x = 541,476.24

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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.