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Finding the Fourth Proportional to 692,408.50, 955,526.61 and 374,456.50

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Solution

The fourth proportional to 692,408.50, 955,526.61 and 374,456.50 is: 516,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,408.50 : 955,526.61 = 374,456.50 : x
  2. Step 2: Convert to fraction form
    692,408.50/955,526.61 = 374,456.50/x
  3. Step 3: Cross multiply
    692,408.50x = 955,526.61 × 374,456.50
  4. Step 4: Simplify right side
    692,408.50x = 357,803,150,037.47
  5. Step 5: Solve for x
    x = 357,803,150,037.47/692,408.50
  6. Step 6: Final answer
    x = 516,751.53

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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.