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Finding the Fourth Proportional to 293,046.80, 439,829.40 and 251,056.40

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Solution

The fourth proportional to 293,046.80, 439,829.40 and 251,056.40 is: 376,806.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,046.80 : 439,829.40 = 251,056.40 : x
  2. Step 2: Convert to fraction form
    293,046.80/439,829.40 = 251,056.40/x
  3. Step 3: Cross multiply
    293,046.80x = 439,829.40 × 251,056.40
  4. Step 4: Simplify right side
    293,046.80x = 110,421,985,778.16
  5. Step 5: Solve for x
    x = 110,421,985,778.16/293,046.80
  6. Step 6: Final answer
    x = 376,806.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.