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Finding the Fourth Proportional to 666,065.25, 919,191.92 and 364,259.25

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Solution

The fourth proportional to 666,065.25, 919,191.92 and 364,259.25 is: 502,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,065.25 : 919,191.92 = 364,259.25 : x
  2. Step 2: Convert to fraction form
    666,065.25/919,191.92 = 364,259.25/x
  3. Step 3: Cross multiply
    666,065.25x = 919,191.92 × 364,259.25
  4. Step 4: Simplify right side
    666,065.25x = 334,824,157,563.96
  5. Step 5: Solve for x
    x = 334,824,157,563.96/666,065.25
  6. Step 6: Final answer
    x = 502,689.73

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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.