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Finding the Fourth Proportional to 303,534.40, 455,593.20 and 153,943.60

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Solution

The fourth proportional to 303,534.40, 455,593.20 and 153,943.60 is: 231,063.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,534.40 : 455,593.20 = 153,943.60 : x
  2. Step 2: Convert to fraction form
    303,534.40/455,593.20 = 153,943.60/x
  3. Step 3: Cross multiply
    303,534.40x = 455,593.20 × 153,943.60
  4. Step 4: Simplify right side
    303,534.40x = 70,135,657,343.52
  5. Step 5: Solve for x
    x = 70,135,657,343.52/303,534.40
  6. Step 6: Final answer
    x = 231,063.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.