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Finding the Fourth Proportional to 676,765.76, 933,936.62 and 404,845.11

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Solution

The fourth proportional to 676,765.76, 933,936.62 and 404,845.11 is: 558,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,765.76 : 933,936.62 = 404,845.11 : x
  2. Step 2: Convert to fraction form
    676,765.76/933,936.62 = 404,845.11/x
  3. Step 3: Cross multiply
    676,765.76x = 933,936.62 × 404,845.11
  4. Step 4: Simplify right side
    676,765.76x = 378,099,671,632.70
  5. Step 5: Solve for x
    x = 378,099,671,632.70/676,765.76
  6. Step 6: Final answer
    x = 558,686.18

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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.