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Finding the Fourth Proportional to 313,416.73, 432,502.95 and 170,173.50

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Solution

The fourth proportional to 313,416.73, 432,502.95 and 170,173.50 is: 234,832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,416.73 : 432,502.95 = 170,173.50 : x
  2. Step 2: Convert to fraction form
    313,416.73/432,502.95 = 170,173.50/x
  3. Step 3: Cross multiply
    313,416.73x = 432,502.95 × 170,173.50
  4. Step 4: Simplify right side
    313,416.73x = 73,600,539,778.09
  5. Step 5: Solve for x
    x = 73,600,539,778.09/313,416.73
  6. Step 6: Final answer
    x = 234,832.84

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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.