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Finding the Fourth Proportional to 647,529.30, 971,293.95 and 629,097.30

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Solution

The fourth proportional to 647,529.30, 971,293.95 and 629,097.30 is: 943,645.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,529.30 : 971,293.95 = 629,097.30 : x
  2. Step 2: Convert to fraction form
    647,529.30/971,293.95 = 629,097.30/x
  3. Step 3: Cross multiply
    647,529.30x = 971,293.95 × 629,097.30
  4. Step 4: Simplify right side
    647,529.30x = 611,038,401,451.34
  5. Step 5: Solve for x
    x = 611,038,401,451.34/647,529.30
  6. Step 6: Final answer
    x = 943,645.95

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Double scale
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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.