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Finding the Fourth Proportional to 666,066.38, 919,193.47 and 364,260.38

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Solution

The fourth proportional to 666,066.38, 919,193.47 and 364,260.38 is: 502,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,066.38 : 919,193.47 = 364,260.38 : x
  2. Step 2: Convert to fraction form
    666,066.38/919,193.47 = 364,260.38/x
  3. Step 3: Cross multiply
    666,066.38x = 919,193.47 × 364,260.38
  4. Step 4: Simplify right side
    666,066.38x = 334,825,757,169.10
  5. Step 5: Solve for x
    x = 334,825,757,169.10/666,066.38
  6. Step 6: Final answer
    x = 502,691.28

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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.