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Finding the Fourth Proportional to 869,771.73, 1,200,294.72 and 482,594.16

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Solution

The fourth proportional to 869,771.73, 1,200,294.72 and 482,594.16 is: 665,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,771.73 : 1,200,294.72 = 482,594.16 : x
  2. Step 2: Convert to fraction form
    869,771.73/1,200,294.72 = 482,594.16/x
  3. Step 3: Cross multiply
    869,771.73x = 1,200,294.72 × 482,594.16
  4. Step 4: Simplify right side
    869,771.73x = 579,255,222,150.84
  5. Step 5: Solve for x
    x = 579,255,222,150.84/869,771.73
  6. Step 6: Final answer
    x = 665,985.34

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.