Home / 638,981.54-958,308.13-189,596.10

Finding the Fourth Proportional to 638,981.54, 958,308.13 and 189,596.10

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Solution

The fourth proportional to 638,981.54, 958,308.13 and 189,596.10 is: 284,345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,981.54 : 958,308.13 = 189,596.10 : x
  2. Step 2: Convert to fraction form
    638,981.54/958,308.13 = 189,596.10/x
  3. Step 3: Cross multiply
    638,981.54x = 958,308.13 × 189,596.10
  4. Step 4: Simplify right side
    638,981.54x = 181,691,484,046.29
  5. Step 5: Solve for x
    x = 181,691,484,046.29/638,981.54
  6. Step 6: Final answer
    x = 284,345.44

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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.