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Finding the Fourth Proportional to 313,580.92, 432,737.56 and 170,345.56

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Solution

The fourth proportional to 313,580.92, 432,737.56 and 170,345.56 is: 235,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,580.92 : 432,737.56 = 170,345.56 : x
  2. Step 2: Convert to fraction form
    313,580.92/432,737.56 = 170,345.56/x
  3. Step 3: Cross multiply
    313,580.92x = 432,737.56 × 170,345.56
  4. Step 4: Simplify right side
    313,580.92x = 73,714,921,991.23
  5. Step 5: Solve for x
    x = 73,714,921,991.23/313,580.92
  6. Step 6: Final answer
    x = 235,074.64

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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.