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Finding the Fourth Proportional to 447,135.60, 670,822.20 and 194,307.60

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Solution

The fourth proportional to 447,135.60, 670,822.20 and 194,307.60 is: 291,513.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,135.60 : 670,822.20 = 194,307.60 : x
  2. Step 2: Convert to fraction form
    447,135.60/670,822.20 = 194,307.60/x
  3. Step 3: Cross multiply
    447,135.60x = 670,822.20 × 194,307.60
  4. Step 4: Simplify right side
    447,135.60x = 130,345,851,708.72
  5. Step 5: Solve for x
    x = 130,345,851,708.72/447,135.60
  6. Step 6: Final answer
    x = 291,513.03

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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.