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Finding the Fourth Proportional to 555,931.24, 767,181.86 and 301,282.28

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Solution

The fourth proportional to 555,931.24, 767,181.86 and 301,282.28 is: 415,767.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,931.24 : 767,181.86 = 301,282.28 : x
  2. Step 2: Convert to fraction form
    555,931.24/767,181.86 = 301,282.28/x
  3. Step 3: Cross multiply
    555,931.24x = 767,181.86 × 301,282.28
  4. Step 4: Simplify right side
    555,931.24x = 231,138,299,955.44
  5. Step 5: Solve for x
    x = 231,138,299,955.44/555,931.24
  6. Step 6: Final answer
    x = 415,767.78

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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.