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Finding the Fourth Proportional to 664,369.70, 996,554.55 and 464,915.30

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Solution

The fourth proportional to 664,369.70, 996,554.55 and 464,915.30 is: 697,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,369.70 : 996,554.55 = 464,915.30 : x
  2. Step 2: Convert to fraction form
    664,369.70/996,554.55 = 464,915.30/x
  3. Step 3: Cross multiply
    664,369.70x = 996,554.55 × 464,915.30
  4. Step 4: Simplify right side
    664,369.70x = 463,313,457,579.62
  5. Step 5: Solve for x
    x = 463,313,457,579.62/664,369.70
  6. Step 6: Final answer
    x = 697,372.95

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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.