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Finding the Fourth Proportional to 633,444.52, 873,822.18 and 391,649.80

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Solution

The fourth proportional to 633,444.52, 873,822.18 and 391,649.80 is: 540,271.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,444.52 : 873,822.18 = 391,649.80 : x
  2. Step 2: Convert to fraction form
    633,444.52/873,822.18 = 391,649.80/x
  3. Step 3: Cross multiply
    633,444.52x = 873,822.18 × 391,649.80
  4. Step 4: Simplify right side
    633,444.52x = 342,232,282,032.56
  5. Step 5: Solve for x
    x = 342,232,282,032.56/633,444.52
  6. Step 6: Final answer
    x = 540,271.91

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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.