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Finding the Fourth Proportional to 404,296.40, 606,943.80 and 254,536.40

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Solution

The fourth proportional to 404,296.40, 606,943.80 and 254,536.40 is: 382,118.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,296.40 : 606,943.80 = 254,536.40 : x
  2. Step 2: Convert to fraction form
    404,296.40/606,943.80 = 254,536.40/x
  3. Step 3: Cross multiply
    404,296.40x = 606,943.80 × 254,536.40
  4. Step 4: Simplify right side
    404,296.40x = 154,489,289,854.32
  5. Step 5: Solve for x
    x = 154,489,289,854.32/404,296.40
  6. Step 6: Final answer
    x = 382,118.89

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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.