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Finding the Fourth Proportional to 293,888.64, 405,190.88 and 190,339.92

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Solution

The fourth proportional to 293,888.64, 405,190.88 and 190,339.92 is: 262,425.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,888.64 : 405,190.88 = 190,339.92 : x
  2. Step 2: Convert to fraction form
    293,888.64/405,190.88 = 190,339.92/x
  3. Step 3: Cross multiply
    293,888.64x = 405,190.88 × 190,339.92
  4. Step 4: Simplify right side
    293,888.64x = 77,123,999,683.93
  5. Step 5: Solve for x
    x = 77,123,999,683.93/293,888.64
  6. Step 6: Final answer
    x = 262,425.93

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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.