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Finding the Fourth Proportional to 438,887.16, 605,660.49 and 237,683.16

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Solution

The fourth proportional to 438,887.16, 605,660.49 and 237,683.16 is: 328,000.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,887.16 : 605,660.49 = 237,683.16 : x
  2. Step 2: Convert to fraction form
    438,887.16/605,660.49 = 237,683.16/x
  3. Step 3: Cross multiply
    438,887.16x = 605,660.49 × 237,683.16
  4. Step 4: Simplify right side
    438,887.16x = 143,955,299,150.35
  5. Step 5: Solve for x
    x = 143,955,299,150.35/438,887.16
  6. Step 6: Final answer
    x = 328,000.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.