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Finding the Fourth Proportional to 320,279.01, 441,985.14 and 177,039.03

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Solution

The fourth proportional to 320,279.01, 441,985.14 and 177,039.03 is: 244,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,279.01 : 441,985.14 = 177,039.03 : x
  2. Step 2: Convert to fraction form
    320,279.01/441,985.14 = 177,039.03/x
  3. Step 3: Cross multiply
    320,279.01x = 441,985.14 × 177,039.03
  4. Step 4: Simplify right side
    320,279.01x = 78,248,620,460.01
  5. Step 5: Solve for x
    x = 78,248,620,460.01/320,279.01
  6. Step 6: Final answer
    x = 244,313.92

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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.