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Finding the Fourth Proportional to 570,709.94, 856,101.81 and 191,615.36

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Solution

The fourth proportional to 570,709.94, 856,101.81 and 191,615.36 is: 287,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,709.94 : 856,101.81 = 191,615.36 : x
  2. Step 2: Convert to fraction form
    570,709.94/856,101.81 = 191,615.36/x
  3. Step 3: Cross multiply
    570,709.94x = 856,101.81 × 191,615.36
  4. Step 4: Simplify right side
    570,709.94x = 164,042,252,239.29
  5. Step 5: Solve for x
    x = 164,042,252,239.29/570,709.94
  6. Step 6: Final answer
    x = 287,435.42

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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.