Home / 638,614.32-957,925.26-189,339.12

Finding the Fourth Proportional to 638,614.32, 957,925.26 and 189,339.12

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Solution

The fourth proportional to 638,614.32, 957,925.26 and 189,339.12 is: 284,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,614.32 : 957,925.26 = 189,339.12 : x
  2. Step 2: Convert to fraction form
    638,614.32/957,925.26 = 189,339.12/x
  3. Step 3: Cross multiply
    638,614.32x = 957,925.26 × 189,339.12
  4. Step 4: Simplify right side
    638,614.32x = 181,372,725,754.17
  5. Step 5: Solve for x
    x = 181,372,725,754.17/638,614.32
  6. Step 6: Final answer
    x = 284,009.80

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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.