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Finding the Fourth Proportional to 294,014.40, 441,021.60 and 291,940.80

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Solution

The fourth proportional to 294,014.40, 441,021.60 and 291,940.80 is: 437,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,014.40 : 441,021.60 = 291,940.80 : x
  2. Step 2: Convert to fraction form
    294,014.40/441,021.60 = 291,940.80/x
  3. Step 3: Cross multiply
    294,014.40x = 441,021.60 × 291,940.80
  4. Step 4: Simplify right side
    294,014.40x = 128,752,198,721.28
  5. Step 5: Solve for x
    x = 128,752,198,721.28/294,014.40
  6. Step 6: Final answer
    x = 437,911.20

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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.