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Finding the Fourth Proportional to 633,024.19, 873,584.21 and 391,300.54

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Solution

The fourth proportional to 633,024.19, 873,584.21 and 391,300.54 is: 540,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,024.19 : 873,584.21 = 391,300.54 : x
  2. Step 2: Convert to fraction form
    633,024.19/873,584.21 = 391,300.54/x
  3. Step 3: Cross multiply
    633,024.19x = 873,584.21 × 391,300.54
  4. Step 4: Simplify right side
    633,024.19x = 341,833,973,108.47
  5. Step 5: Solve for x
    x = 341,833,973,108.47/633,024.19
  6. Step 6: Final answer
    x = 540,001.44

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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.