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Finding the Fourth Proportional to 393,953.47, 591,114.75 and 194,164.95

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Solution

The fourth proportional to 393,953.47, 591,114.75 and 194,164.95 is: 291,338.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,953.47 : 591,114.75 = 194,164.95 : x
  2. Step 2: Convert to fraction form
    393,953.47/591,114.75 = 194,164.95/x
  3. Step 3: Cross multiply
    393,953.47x = 591,114.75 × 194,164.95
  4. Step 4: Simplify right side
    393,953.47x = 114,773,765,878.01
  5. Step 5: Solve for x
    x = 114,773,765,878.01/393,953.47
  6. Step 6: Final answer
    x = 291,338.38

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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.