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Finding the Fourth Proportional to 293,885.53, 405,186.58 and 190,336.77

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Solution

The fourth proportional to 293,885.53, 405,186.58 and 190,336.77 is: 262,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,885.53 : 405,186.58 = 190,336.77 : x
  2. Step 2: Convert to fraction form
    293,885.53/405,186.58 = 190,336.77/x
  3. Step 3: Cross multiply
    293,885.53x = 405,186.58 × 190,336.77
  4. Step 4: Simplify right side
    293,885.53x = 77,121,904,408.70
  5. Step 5: Solve for x
    x = 77,121,904,408.70/293,885.53
  6. Step 6: Final answer
    x = 262,421.58

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1.5x scale

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.