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Finding the Fourth Proportional to 219,997.40, 329,412.90 and 173,341.40

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Solution

The fourth proportional to 219,997.40, 329,412.90 and 173,341.40 is: 259,552.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,997.40 : 329,412.90 = 173,341.40 : x
  2. Step 2: Convert to fraction form
    219,997.40/329,412.90 = 173,341.40/x
  3. Step 3: Cross multiply
    219,997.40x = 329,412.90 × 173,341.40
  4. Step 4: Simplify right side
    219,997.40x = 57,100,893,264.06
  5. Step 5: Solve for x
    x = 57,100,893,264.06/219,997.40
  6. Step 6: Final answer
    x = 259,552.58

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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.