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Finding the Fourth Proportional to 935,866.20, 1,403,108.10 and 374,611.80

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Solution

The fourth proportional to 935,866.20, 1,403,108.10 and 374,611.80 is: 561,641.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,866.20 : 1,403,108.10 = 374,611.80 : x
  2. Step 2: Convert to fraction form
    935,866.20/1,403,108.10 = 374,611.80/x
  3. Step 3: Cross multiply
    935,866.20x = 1,403,108.10 × 374,611.80
  4. Step 4: Simplify right side
    935,866.20x = 525,620,850,935.58
  5. Step 5: Solve for x
    x = 525,620,850,935.58/935,866.20
  6. Step 6: Final answer
    x = 561,641.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.