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Finding the Fourth Proportional to 556,616.46, 768,131.01 and 301,967.64

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Solution

The fourth proportional to 556,616.46, 768,131.01 and 301,967.64 is: 416,715.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,616.46 : 768,131.01 = 301,967.64 : x
  2. Step 2: Convert to fraction form
    556,616.46/768,131.01 = 301,967.64/x
  3. Step 3: Cross multiply
    556,616.46x = 768,131.01 × 301,967.64
  4. Step 4: Simplify right side
    556,616.46x = 231,950,708,300.52
  5. Step 5: Solve for x
    x = 231,950,708,300.52/556,616.46
  6. Step 6: Final answer
    x = 416,715.50

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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.