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Finding the Fourth Proportional to 313,272.48, 432,316.32 and 170,032.56

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Solution

The fourth proportional to 313,272.48, 432,316.32 and 170,032.56 is: 234,645.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,272.48 : 432,316.32 = 170,032.56 : x
  2. Step 2: Convert to fraction form
    313,272.48/432,316.32 = 170,032.56/x
  3. Step 3: Cross multiply
    313,272.48x = 432,316.32 × 170,032.56
  4. Step 4: Simplify right side
    313,272.48x = 73,507,850,619.38
  5. Step 5: Solve for x
    x = 73,507,850,619.38/313,272.48
  6. Step 6: Final answer
    x = 234,645.09

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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.