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Finding the Fourth Proportional to 604,829.70, 907,244.55 and 427,682.70

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Solution

The fourth proportional to 604,829.70, 907,244.55 and 427,682.70 is: 641,524.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,829.70 : 907,244.55 = 427,682.70 : x
  2. Step 2: Convert to fraction form
    604,829.70/907,244.55 = 427,682.70/x
  3. Step 3: Cross multiply
    604,829.70x = 907,244.55 × 427,682.70
  4. Step 4: Simplify right side
    604,829.70x = 388,012,798,704.29
  5. Step 5: Solve for x
    x = 388,012,798,704.29/604,829.70
  6. Step 6: Final answer
    x = 641,524.05

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.