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Finding the Fourth Proportional to 493,985.88, 742,161.04 and 316,838.88

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Solution

The fourth proportional to 493,985.88, 742,161.04 and 316,838.88 is: 476,016.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,985.88 : 742,161.04 = 316,838.88 : x
  2. Step 2: Convert to fraction form
    493,985.88/742,161.04 = 316,838.88/x
  3. Step 3: Cross multiply
    493,985.88x = 742,161.04 × 316,838.88
  4. Step 4: Simplify right side
    493,985.88x = 235,145,472,693.24
  5. Step 5: Solve for x
    x = 235,145,472,693.24/493,985.88
  6. Step 6: Final answer
    x = 476,016.59

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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.