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Finding the Fourth Proportional to 275,989.60, 413,984.40 and 249,745.60

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Solution

The fourth proportional to 275,989.60, 413,984.40 and 249,745.60 is: 374,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,989.60 : 413,984.40 = 249,745.60 : x
  2. Step 2: Convert to fraction form
    275,989.60/413,984.40 = 249,745.60/x
  3. Step 3: Cross multiply
    275,989.60x = 413,984.40 × 249,745.60
  4. Step 4: Simplify right side
    275,989.60x = 103,390,782,368.64
  5. Step 5: Solve for x
    x = 103,390,782,368.64/275,989.60
  6. Step 6: Final answer
    x = 374,618.40

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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.