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Finding the Fourth Proportional to 255,652.22, 353,437.81 and 191,879.30

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Solution

The fourth proportional to 255,652.22, 353,437.81 and 191,879.30 is: 265,272.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,652.22 : 353,437.81 = 191,879.30 : x
  2. Step 2: Convert to fraction form
    255,652.22/353,437.81 = 191,879.30/x
  3. Step 3: Cross multiply
    255,652.22x = 353,437.81 × 191,879.30
  4. Step 4: Simplify right side
    255,652.22x = 67,817,399,980.23
  5. Step 5: Solve for x
    x = 67,817,399,980.23/255,652.22
  6. Step 6: Final answer
    x = 265,272.09

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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.