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Finding the Fourth Proportional to 464,319.14, 640,524.58 and 303,268.46

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Solution

The fourth proportional to 464,319.14, 640,524.58 and 303,268.46 is: 418,356.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,319.14 : 640,524.58 = 303,268.46 : x
  2. Step 2: Convert to fraction form
    464,319.14/640,524.58 = 303,268.46/x
  3. Step 3: Cross multiply
    464,319.14x = 640,524.58 × 303,268.46
  4. Step 4: Simplify right side
    464,319.14x = 194,250,899,007.95
  5. Step 5: Solve for x
    x = 194,250,899,007.95/464,319.14
  6. Step 6: Final answer
    x = 418,356.44

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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.