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Finding the Fourth Proportional to 570,642.88, 855,962.26 and 171,281.92

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Solution

The fourth proportional to 570,642.88, 855,962.26 and 171,281.92 is: 256,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,642.88 : 855,962.26 = 171,281.92 : x
  2. Step 2: Convert to fraction form
    570,642.88/855,962.26 = 171,281.92/x
  3. Step 3: Cross multiply
    570,642.88x = 855,962.26 × 171,281.92
  4. Step 4: Simplify right side
    570,642.88x = 146,610,859,340.34
  5. Step 5: Solve for x
    x = 146,610,859,340.34/570,642.88
  6. Step 6: Final answer
    x = 256,922.26

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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.