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Finding the Fourth Proportional to 556,630.25, 768,151.23 and 301,981.44

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Solution

The fourth proportional to 556,630.25, 768,151.23 and 301,981.44 is: 416,735.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,630.25 : 768,151.23 = 301,981.44 : x
  2. Step 2: Convert to fraction form
    556,630.25/768,151.23 = 301,981.44/x
  3. Step 3: Cross multiply
    556,630.25x = 768,151.23 × 301,981.44
  4. Step 4: Simplify right side
    556,630.25x = 231,967,414,573.17
  5. Step 5: Solve for x
    x = 231,967,414,573.17/556,630.25
  6. Step 6: Final answer
    x = 416,735.19

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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.