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Finding the Fourth Proportional to 294,673.40, 440,843.70 and 255,663.80

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Solution

The fourth proportional to 294,673.40, 440,843.70 and 255,663.80 is: 382,483.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,673.40 : 440,843.70 = 255,663.80 : x
  2. Step 2: Convert to fraction form
    294,673.40/440,843.70 = 255,663.80/x
  3. Step 3: Cross multiply
    294,673.40x = 440,843.70 × 255,663.80
  4. Step 4: Simplify right side
    294,673.40x = 112,707,775,548.06
  5. Step 5: Solve for x
    x = 112,707,775,548.06/294,673.40
  6. Step 6: Final answer
    x = 382,483.71

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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.