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Finding the Fourth Proportional to 922,774.60, 1,383,902.70 and 291,881.80

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Solution

The fourth proportional to 922,774.60, 1,383,902.70 and 291,881.80 is: 437,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,774.60 : 1,383,902.70 = 291,881.80 : x
  2. Step 2: Convert to fraction form
    922,774.60/1,383,902.70 = 291,881.80/x
  3. Step 3: Cross multiply
    922,774.60x = 1,383,902.70 × 291,881.80
  4. Step 4: Simplify right side
    922,774.60x = 403,936,011,100.86
  5. Step 5: Solve for x
    x = 403,936,011,100.86/922,774.60
  6. Step 6: Final answer
    x = 437,740.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.