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Finding the Fourth Proportional to 356,108.08, 491,430.60 and 194,978.13

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Solution

The fourth proportional to 356,108.08, 491,430.60 and 194,978.13 is: 269,070.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,108.08 : 491,430.60 = 194,978.13 : x
  2. Step 2: Convert to fraction form
    356,108.08/491,430.60 = 194,978.13/x
  3. Step 3: Cross multiply
    356,108.08x = 491,430.60 × 194,978.13
  4. Step 4: Simplify right side
    356,108.08x = 95,818,219,412.78
  5. Step 5: Solve for x
    x = 95,818,219,412.78/356,108.08
  6. Step 6: Final answer
    x = 269,070.61

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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.