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Finding the Fourth Proportional to 555,867.90, 767,098.35 and 301,216.86

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Solution

The fourth proportional to 555,867.90, 767,098.35 and 301,216.86 is: 415,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,867.90 : 767,098.35 = 301,216.86 : x
  2. Step 2: Convert to fraction form
    555,867.90/767,098.35 = 301,216.86/x
  3. Step 3: Cross multiply
    555,867.90x = 767,098.35 × 301,216.86
  4. Step 4: Simplify right side
    555,867.90x = 231,062,956,298.18
  5. Step 5: Solve for x
    x = 231,062,956,298.18/555,867.90
  6. Step 6: Final answer
    x = 415,679.62

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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.