Home / 638,624.28-957,583.08-253,983.60

Finding the Fourth Proportional to 638,624.28, 957,583.08 and 253,983.60

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Solution

The fourth proportional to 638,624.28, 957,583.08 and 253,983.60 is: 380,834.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,624.28 : 957,583.08 = 253,983.60 : x
  2. Step 2: Convert to fraction form
    638,624.28/957,583.08 = 253,983.60/x
  3. Step 3: Cross multiply
    638,624.28x = 957,583.08 × 253,983.60
  4. Step 4: Simplify right side
    638,624.28x = 243,210,396,886.00
  5. Step 5: Solve for x
    x = 243,210,396,886.00/638,624.28
  6. Step 6: Final answer
    x = 380,834.88

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Double scale
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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.