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Finding the Fourth Proportional to 313,603.74, 432,773.53 and 170,363.78

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Solution

The fourth proportional to 313,603.74, 432,773.53 and 170,363.78 is: 235,102.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,603.74 : 432,773.53 = 170,363.78 : x
  2. Step 2: Convert to fraction form
    313,603.74/432,773.53 = 170,363.78/x
  3. Step 3: Cross multiply
    313,603.74x = 432,773.53 × 170,363.78
  4. Step 4: Simplify right side
    313,603.74x = 73,728,934,454.74
  5. Step 5: Solve for x
    x = 73,728,934,454.74/313,603.74
  6. Step 6: Final answer
    x = 235,102.22

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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.