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Finding the Fourth Proportional to 676,805.54, 933,991.66 and 374,999.54

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Solution

The fourth proportional to 676,805.54, 933,991.66 and 374,999.54 is: 517,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,805.54 : 933,991.66 = 374,999.54 : x
  2. Step 2: Convert to fraction form
    676,805.54/933,991.66 = 374,999.54/x
  3. Step 3: Cross multiply
    676,805.54x = 933,991.66 × 374,999.54
  4. Step 4: Simplify right side
    676,805.54x = 350,246,442,863.84
  5. Step 5: Solve for x
    x = 350,246,442,863.84/676,805.54
  6. Step 6: Final answer
    x = 517,499.37

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1.5x scale

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.