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Finding the Fourth Proportional to 536,609.40, 803,747.70 and 325,879.80

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Solution

The fourth proportional to 536,609.40, 803,747.70 and 325,879.80 is: 488,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,609.40 : 803,747.70 = 325,879.80 : x
  2. Step 2: Convert to fraction form
    536,609.40/803,747.70 = 325,879.80/x
  3. Step 3: Cross multiply
    536,609.40x = 803,747.70 × 325,879.80
  4. Step 4: Simplify right side
    536,609.40x = 261,925,139,726.46
  5. Step 5: Solve for x
    x = 261,925,139,726.46/536,609.40
  6. Step 6: Final answer
    x = 488,111.35

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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.