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Finding the Fourth Proportional to 352,756.75, 486,341.09 and 254,557.58

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Solution

The fourth proportional to 352,756.75, 486,341.09 and 254,557.58 is: 350,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,756.75 : 486,341.09 = 254,557.58 : x
  2. Step 2: Convert to fraction form
    352,756.75/486,341.09 = 254,557.58/x
  3. Step 3: Cross multiply
    352,756.75x = 486,341.09 × 254,557.58
  4. Step 4: Simplify right side
    352,756.75x = 123,801,807,220.47
  5. Step 5: Solve for x
    x = 123,801,807,220.47/352,756.75
  6. Step 6: Final answer
    x = 350,955.18

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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.