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Finding the Fourth Proportional to 464,333.80, 640,917.54 and 303,214.04

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Solution

The fourth proportional to 464,333.80, 640,917.54 and 303,214.04 is: 418,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,333.80 : 640,917.54 = 303,214.04 : x
  2. Step 2: Convert to fraction form
    464,333.80/640,917.54 = 303,214.04/x
  3. Step 3: Cross multiply
    464,333.80x = 640,917.54 × 303,214.04
  4. Step 4: Simplify right side
    464,333.80x = 194,335,196,610.26
  5. Step 5: Solve for x
    x = 194,335,196,610.26/464,333.80
  6. Step 6: Final answer
    x = 418,524.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.