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Finding the Fourth Proportional to 676,208.50, 933,196.89 and 374,402.50

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Solution

The fourth proportional to 676,208.50, 933,196.89 and 374,402.50 is: 516,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,208.50 : 933,196.89 = 374,402.50 : x
  2. Step 2: Convert to fraction form
    676,208.50/933,196.89 = 374,402.50/x
  3. Step 3: Cross multiply
    676,208.50x = 933,196.89 × 374,402.50
  4. Step 4: Simplify right side
    676,208.50x = 349,391,248,608.23
  5. Step 5: Solve for x
    x = 349,391,248,608.23/676,208.50
  6. Step 6: Final answer
    x = 516,691.60

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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.