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Finding the Fourth Proportional to 313,777.47, 433,010.31 and 170,538.39

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Solution

The fourth proportional to 313,777.47, 433,010.31 and 170,538.39 is: 235,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,777.47 : 433,010.31 = 170,538.39 : x
  2. Step 2: Convert to fraction form
    313,777.47/433,010.31 = 170,538.39/x
  3. Step 3: Cross multiply
    313,777.47x = 433,010.31 × 170,538.39
  4. Step 4: Simplify right side
    313,777.47x = 73,844,878,955.75
  5. Step 5: Solve for x
    x = 73,844,878,955.75/313,777.47
  6. Step 6: Final answer
    x = 235,341.56

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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.