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Finding the Fourth Proportional to 521,777.40, 783,016.80 and 184,816.84

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Solution

The fourth proportional to 521,777.40, 783,016.80 and 184,816.84 is: 277,349.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,777.40 : 783,016.80 = 184,816.84 : x
  2. Step 2: Convert to fraction form
    521,777.40/783,016.80 = 184,816.84/x
  3. Step 3: Cross multiply
    521,777.40x = 783,016.80 × 184,816.84
  4. Step 4: Simplify right side
    521,777.40x = 144,714,690,642.91
  5. Step 5: Solve for x
    x = 144,714,690,642.91/521,777.40
  6. Step 6: Final answer
    x = 277,349.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.