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Finding the Fourth Proportional to 556,081.37, 767,393.28 and 301,433.16

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Solution

The fourth proportional to 556,081.37, 767,393.28 and 301,433.16 is: 415,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,081.37 : 767,393.28 = 301,433.16 : x
  2. Step 2: Convert to fraction form
    556,081.37/767,393.28 = 301,433.16/x
  3. Step 3: Cross multiply
    556,081.37x = 767,393.28 × 301,433.16
  4. Step 4: Simplify right side
    556,081.37x = 231,317,781,353.17
  5. Step 5: Solve for x
    x = 231,317,781,353.17/556,081.37
  6. Step 6: Final answer
    x = 415,978.30

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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.