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Finding the Fourth Proportional to 570,573.90, 855,860.04 and 171,214.02

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Solution

The fourth proportional to 570,573.90, 855,860.04 and 171,214.02 is: 256,820.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,573.90 : 855,860.04 = 171,214.02 : x
  2. Step 2: Convert to fraction form
    570,573.90/855,860.04 = 171,214.02/x
  3. Step 3: Cross multiply
    570,573.90x = 855,860.04 × 171,214.02
  4. Step 4: Simplify right side
    570,573.90x = 146,535,238,005.76
  5. Step 5: Solve for x
    x = 146,535,238,005.76/570,573.90
  6. Step 6: Final answer
    x = 256,820.79

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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.