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Finding the Fourth Proportional to 664,379.70, 996,569.55 and 464,925.30

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Solution

The fourth proportional to 664,379.70, 996,569.55 and 464,925.30 is: 697,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,379.70 : 996,569.55 = 464,925.30 : x
  2. Step 2: Convert to fraction form
    664,379.70/996,569.55 = 464,925.30/x
  3. Step 3: Cross multiply
    664,379.70x = 996,569.55 × 464,925.30
  4. Step 4: Simplify right side
    664,379.70x = 463,330,397,004.62
  5. Step 5: Solve for x
    x = 463,330,397,004.62/664,379.70
  6. Step 6: Final answer
    x = 697,387.95

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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.