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Finding the Fourth Proportional to 393,532.47, 543,024.95 and 223,770.24

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Solution

The fourth proportional to 393,532.47, 543,024.95 and 223,770.24 is: 308,774.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,532.47 : 543,024.95 = 223,770.24 : x
  2. Step 2: Convert to fraction form
    393,532.47/543,024.95 = 223,770.24/x
  3. Step 3: Cross multiply
    393,532.47x = 543,024.95 × 223,770.24
  4. Step 4: Simplify right side
    393,532.47x = 121,512,822,268.64
  5. Step 5: Solve for x
    x = 121,512,822,268.64/393,532.47
  6. Step 6: Final answer
    x = 308,774.58

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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.