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Finding the Fourth Proportional to 404,456.60, 606,684.90 and 254,865.80

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Solution

The fourth proportional to 404,456.60, 606,684.90 and 254,865.80 is: 382,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,456.60 : 606,684.90 = 254,865.80 : x
  2. Step 2: Convert to fraction form
    404,456.60/606,684.90 = 254,865.80/x
  3. Step 3: Cross multiply
    404,456.60x = 606,684.90 × 254,865.80
  4. Step 4: Simplify right side
    404,456.60x = 154,623,232,386.42
  5. Step 5: Solve for x
    x = 154,623,232,386.42/404,456.60
  6. Step 6: Final answer
    x = 382,298.70

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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.