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Finding the Fourth Proportional to 291,781.35, 402,774.23 and 250,783.17

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Solution

The fourth proportional to 291,781.35, 402,774.23 and 250,783.17 is: 346,180.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,781.35 : 402,774.23 = 250,783.17 : x
  2. Step 2: Convert to fraction form
    291,781.35/402,774.23 = 250,783.17/x
  3. Step 3: Cross multiply
    291,781.35x = 402,774.23 × 250,783.17
  4. Step 4: Simplify right side
    291,781.35x = 101,008,996,939.79
  5. Step 5: Solve for x
    x = 101,008,996,939.79/291,781.35
  6. Step 6: Final answer
    x = 346,180.44

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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.