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Finding the Fourth Proportional to 320,693.57, 442,421.55 and 184,694.97

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Solution

The fourth proportional to 320,693.57, 442,421.55 and 184,694.97 is: 254,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,693.57 : 442,421.55 = 184,694.97 : x
  2. Step 2: Convert to fraction form
    320,693.57/442,421.55 = 184,694.97/x
  3. Step 3: Cross multiply
    320,693.57x = 442,421.55 × 184,694.97
  4. Step 4: Simplify right side
    320,693.57x = 81,713,034,904.60
  5. Step 5: Solve for x
    x = 81,713,034,904.60/320,693.57
  6. Step 6: Final answer
    x = 254,800.98

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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.