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Finding the Fourth Proportional to 653,979.60, 980,567.96 and 254,153.52

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Solution

The fourth proportional to 653,979.60, 980,567.96 and 254,153.52 is: 381,074.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,979.60 : 980,567.96 = 254,153.52 : x
  2. Step 2: Convert to fraction form
    653,979.60/980,567.96 = 254,153.52/x
  3. Step 3: Cross multiply
    653,979.60x = 980,567.96 × 254,153.52
  4. Step 4: Simplify right side
    653,979.60x = 249,214,797,362.45
  5. Step 5: Solve for x
    x = 249,214,797,362.45/653,979.60
  6. Step 6: Final answer
    x = 381,074.27

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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.