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Finding the Fourth Proportional to 313,416.58, 432,502.74 and 170,173.34

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Solution

The fourth proportional to 313,416.58, 432,502.74 and 170,173.34 is: 234,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,416.58 : 432,502.74 = 170,173.34 : x
  2. Step 2: Convert to fraction form
    313,416.58/432,502.74 = 170,173.34/x
  3. Step 3: Cross multiply
    313,416.58x = 432,502.74 × 170,173.34
  4. Step 4: Simplify right side
    313,416.58x = 73,600,435,824.95
  5. Step 5: Solve for x
    x = 73,600,435,824.95/313,416.58
  6. Step 6: Final answer
    x = 234,832.62

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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.