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Finding the Fourth Proportional to 666,256.36, 919,433.70 and 364,449.64

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Solution

The fourth proportional to 666,256.36, 919,433.70 and 364,449.64 is: 502,940.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,256.36 : 919,433.70 = 364,449.64 : x
  2. Step 2: Convert to fraction form
    666,256.36/919,433.70 = 364,449.64/x
  3. Step 3: Cross multiply
    666,256.36x = 919,433.70 × 364,449.64
  4. Step 4: Simplify right side
    666,256.36x = 335,087,280,968.87
  5. Step 5: Solve for x
    x = 335,087,280,968.87/666,256.36
  6. Step 6: Final answer
    x = 502,940.46

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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.