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Finding the Fourth Proportional to 676,194, 933,176.88 and 374,388

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Solution

The fourth proportional to 676,194, 933,176.88 and 374,388 is: 516,671.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,194 : 933,176.88 = 374,388 : x
  2. Step 2: Convert to fraction form
    676,194/933,176.88 = 374,388/x
  3. Step 3: Cross multiply
    676,194x = 933,176.88 × 374,388
  4. Step 4: Simplify right side
    676,194x = 349,370,225,749.44
  5. Step 5: Solve for x
    x = 349,370,225,749.44/676,194
  6. Step 6: Final answer
    x = 516,671.59

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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.