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Finding the Fourth Proportional to 292,797.90, 439,196.85 and 263,273.40

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Solution

The fourth proportional to 292,797.90, 439,196.85 and 263,273.40 is: 394,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,797.90 : 439,196.85 = 263,273.40 : x
  2. Step 2: Convert to fraction form
    292,797.90/439,196.85 = 263,273.40/x
  3. Step 3: Cross multiply
    292,797.90x = 439,196.85 × 263,273.40
  4. Step 4: Simplify right side
    292,797.90x = 115,628,847,968.79
  5. Step 5: Solve for x
    x = 115,628,847,968.79/292,797.90
  6. Step 6: Final answer
    x = 394,910.10

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1.5x scale

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.