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Finding the Fourth Proportional to 936,978.96, 1,403,202.60 and 536,404.80

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Solution

The fourth proportional to 936,978.96, 1,403,202.60 and 536,404.80 is: 803,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,978.96 : 1,403,202.60 = 536,404.80 : x
  2. Step 2: Convert to fraction form
    936,978.96/1,403,202.60 = 536,404.80/x
  3. Step 3: Cross multiply
    936,978.96x = 1,403,202.60 × 536,404.80
  4. Step 4: Simplify right side
    936,978.96x = 752,684,610,012.48
  5. Step 5: Solve for x
    x = 752,684,610,012.48/936,978.96
  6. Step 6: Final answer
    x = 803,310.04

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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.