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Finding the Fourth Proportional to 647,208.70, 970,813.05 and 529,110.70

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Solution

The fourth proportional to 647,208.70, 970,813.05 and 529,110.70 is: 793,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,208.70 : 970,813.05 = 529,110.70 : x
  2. Step 2: Convert to fraction form
    647,208.70/970,813.05 = 529,110.70/x
  3. Step 3: Cross multiply
    647,208.70x = 970,813.05 × 529,110.70
  4. Step 4: Simplify right side
    647,208.70x = 513,667,572,454.64
  5. Step 5: Solve for x
    x = 513,667,572,454.64/647,208.70
  6. Step 6: Final answer
    x = 793,666.05

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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.