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Finding the Fourth Proportional to 517,784.99, 714,175.20 and 345,616.14

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Solution

The fourth proportional to 517,784.99, 714,175.20 and 345,616.14 is: 476,704.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,784.99 : 714,175.20 = 345,616.14 : x
  2. Step 2: Convert to fraction form
    517,784.99/714,175.20 = 345,616.14/x
  3. Step 3: Cross multiply
    517,784.99x = 714,175.20 × 345,616.14
  4. Step 4: Simplify right side
    517,784.99x = 246,830,475,907.73
  5. Step 5: Solve for x
    x = 246,830,475,907.73/517,784.99
  6. Step 6: Final answer
    x = 476,704.58

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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.