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Finding the Fourth Proportional to 664,318.20, 996,477.30 and 606,257.40

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Solution

The fourth proportional to 664,318.20, 996,477.30 and 606,257.40 is: 909,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,318.20 : 996,477.30 = 606,257.40 : x
  2. Step 2: Convert to fraction form
    664,318.20/996,477.30 = 606,257.40/x
  3. Step 3: Cross multiply
    664,318.20x = 996,477.30 × 606,257.40
  4. Step 4: Simplify right side
    664,318.20x = 604,121,737,057.02
  5. Step 5: Solve for x
    x = 604,121,737,057.02/664,318.20
  6. Step 6: Final answer
    x = 909,386.10

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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.