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Finding the Fourth Proportional to 570,319.44, 855,668.70 and 191,277.24

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Solution

The fourth proportional to 570,319.44, 855,668.70 and 191,277.24 is: 286,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,319.44 : 855,668.70 = 191,277.24 : x
  2. Step 2: Convert to fraction form
    570,319.44/855,668.70 = 191,277.24/x
  3. Step 3: Cross multiply
    570,319.44x = 855,668.70 × 191,277.24
  4. Step 4: Simplify right side
    570,319.44x = 163,669,947,290.39
  5. Step 5: Solve for x
    x = 163,669,947,290.39/570,319.44
  6. Step 6: Final answer
    x = 286,979.43

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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.