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Finding the Fourth Proportional to 570,867.72, 856,400.55 and 191,825.46

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Solution

The fourth proportional to 570,867.72, 856,400.55 and 191,825.46 is: 287,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,867.72 : 856,400.55 = 191,825.46 : x
  2. Step 2: Convert to fraction form
    570,867.72/856,400.55 = 191,825.46/x
  3. Step 3: Cross multiply
    570,867.72x = 856,400.55 × 191,825.46
  4. Step 4: Simplify right side
    570,867.72x = 164,279,429,448.00
  5. Step 5: Solve for x
    x = 164,279,429,448.00/570,867.72
  6. Step 6: Final answer
    x = 287,771.45

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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.