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Finding the Fourth Proportional to 438,398.28, 604,989.60 and 237,194.28

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Solution

The fourth proportional to 438,398.28, 604,989.60 and 237,194.28 is: 327,328.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,398.28 : 604,989.60 = 237,194.28 : x
  2. Step 2: Convert to fraction form
    438,398.28/604,989.60 = 237,194.28/x
  3. Step 3: Cross multiply
    438,398.28x = 604,989.60 × 237,194.28
  4. Step 4: Simplify right side
    438,398.28x = 143,500,072,579.49
  5. Step 5: Solve for x
    x = 143,500,072,579.49/438,398.28
  6. Step 6: Final answer
    x = 327,328.09

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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.