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Finding the Fourth Proportional to 294,879.23, 406,699.29 and 191,400.30

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Solution

The fourth proportional to 294,879.23, 406,699.29 and 191,400.30 is: 263,980.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,879.23 : 406,699.29 = 191,400.30 : x
  2. Step 2: Convert to fraction form
    294,879.23/406,699.29 = 191,400.30/x
  3. Step 3: Cross multiply
    294,879.23x = 406,699.29 × 191,400.30
  4. Step 4: Simplify right side
    294,879.23x = 77,842,366,115.79
  5. Step 5: Solve for x
    x = 77,842,366,115.79/294,879.23
  6. Step 6: Final answer
    x = 263,980.50

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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.