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Finding the Fourth Proportional to 654,771.68, 903,578.40 and 364,378.34

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Solution

The fourth proportional to 654,771.68, 903,578.40 and 364,378.34 is: 502,838.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,771.68 : 903,578.40 = 364,378.34 : x
  2. Step 2: Convert to fraction form
    654,771.68/903,578.40 = 364,378.34/x
  3. Step 3: Cross multiply
    654,771.68x = 903,578.40 × 364,378.34
  4. Step 4: Simplify right side
    654,771.68x = 329,244,397,451.86
  5. Step 5: Solve for x
    x = 329,244,397,451.86/654,771.68
  6. Step 6: Final answer
    x = 502,838.48

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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.