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Finding the Fourth Proportional to 556,625.76, 768,143.82 and 301,976.88

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Solution

The fourth proportional to 556,625.76, 768,143.82 and 301,976.88 is: 416,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,625.76 : 768,143.82 = 301,976.88 : x
  2. Step 2: Convert to fraction form
    556,625.76/768,143.82 = 301,976.88/x
  3. Step 3: Cross multiply
    556,625.76x = 768,143.82 × 301,976.88
  4. Step 4: Simplify right side
    556,625.76x = 231,961,670,314.16
  5. Step 5: Solve for x
    x = 231,961,670,314.16/556,625.76
  6. Step 6: Final answer
    x = 416,728.24

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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.