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Finding the Fourth Proportional to 666,064.75, 919,191.23 and 364,258.75

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Solution

The fourth proportional to 666,064.75, 919,191.23 and 364,258.75 is: 502,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,064.75 : 919,191.23 = 364,258.75 : x
  2. Step 2: Convert to fraction form
    666,064.75/919,191.23 = 364,258.75/x
  3. Step 3: Cross multiply
    666,064.75x = 919,191.23 × 364,258.75
  4. Step 4: Simplify right side
    666,064.75x = 334,823,448,450.76
  5. Step 5: Solve for x
    x = 334,823,448,450.76/666,064.75
  6. Step 6: Final answer
    x = 502,689.04

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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.