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Finding the Fourth Proportional to 404,213.64, 605,781.69 and 191,038.15

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Solution

The fourth proportional to 404,213.64, 605,781.69 and 191,038.15 is: 286,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,213.64 : 605,781.69 = 191,038.15 : x
  2. Step 2: Convert to fraction form
    404,213.64/605,781.69 = 191,038.15/x
  3. Step 3: Cross multiply
    404,213.64x = 605,781.69 × 191,038.15
  4. Step 4: Simplify right side
    404,213.64x = 115,727,413,361.47
  5. Step 5: Solve for x
    x = 115,727,413,361.47/404,213.64
  6. Step 6: Final answer
    x = 286,302.59

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1.5x scale

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.