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Finding the Fourth Proportional to 666,555, 919,844.53 and 360,630.44

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Solution

The fourth proportional to 666,555, 919,844.53 and 360,630.44 is: 497,669.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,555 : 919,844.53 = 360,630.44 : x
  2. Step 2: Convert to fraction form
    666,555/919,844.53 = 360,630.44/x
  3. Step 3: Cross multiply
    666,555x = 919,844.53 × 360,630.44
  4. Step 4: Simplify right side
    666,555x = 331,723,937,585.49
  5. Step 5: Solve for x
    x = 331,723,937,585.49/666,555
  6. Step 6: Final answer
    x = 497,669.27

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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.