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Finding the Fourth Proportional to 666,398.84, 919,653.36 and 364,592.84

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Solution

The fourth proportional to 666,398.84, 919,653.36 and 364,592.84 is: 503,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,398.84 : 919,653.36 = 364,592.84 : x
  2. Step 2: Convert to fraction form
    666,398.84/919,653.36 = 364,592.84/x
  3. Step 3: Cross multiply
    666,398.84x = 919,653.36 × 364,592.84
  4. Step 4: Simplify right side
    666,398.84x = 335,299,030,337.94
  5. Step 5: Solve for x
    x = 335,299,030,337.94/666,398.84
  6. Step 6: Final answer
    x = 503,150.68

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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.