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Finding the Fourth Proportional to 624,183.40, 936,275.10 and 384,488.20

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Solution

The fourth proportional to 624,183.40, 936,275.10 and 384,488.20 is: 576,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,183.40 : 936,275.10 = 384,488.20 : x
  2. Step 2: Convert to fraction form
    624,183.40/936,275.10 = 384,488.20/x
  3. Step 3: Cross multiply
    624,183.40x = 936,275.10 × 384,488.20
  4. Step 4: Simplify right side
    624,183.40x = 359,986,727,903.82
  5. Step 5: Solve for x
    x = 359,986,727,903.82/624,183.40
  6. Step 6: Final answer
    x = 576,732.30

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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.