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Finding the Fourth Proportional to 404,383.20, 607,012.20 and 254,792.40

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Solution

The fourth proportional to 404,383.20, 607,012.20 and 254,792.40 is: 382,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,383.20 : 607,012.20 = 254,792.40 : x
  2. Step 2: Convert to fraction form
    404,383.20/607,012.20 = 254,792.40/x
  3. Step 3: Cross multiply
    404,383.20x = 607,012.20 × 254,792.40
  4. Step 4: Simplify right side
    404,383.20x = 154,662,095,267.28
  5. Step 5: Solve for x
    x = 154,662,095,267.28/404,383.20
  6. Step 6: Final answer
    x = 382,464.20

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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.