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Finding the Fourth Proportional to 638,254.96, 957,382.44 and 195,019.12

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Solution

The fourth proportional to 638,254.96, 957,382.44 and 195,019.12 is: 292,528.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,254.96 : 957,382.44 = 195,019.12 : x
  2. Step 2: Convert to fraction form
    638,254.96/957,382.44 = 195,019.12/x
  3. Step 3: Cross multiply
    638,254.96x = 957,382.44 × 195,019.12
  4. Step 4: Simplify right side
    638,254.96x = 186,707,880,952.25
  5. Step 5: Solve for x
    x = 186,707,880,952.25/638,254.96
  6. Step 6: Final answer
    x = 292,528.68

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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.