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Finding the Fourth Proportional to 320,075.98, 441,709.49 and 176,839.32

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Solution

The fourth proportional to 320,075.98, 441,709.49 and 176,839.32 is: 244,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,075.98 : 441,709.49 = 176,839.32 : x
  2. Step 2: Convert to fraction form
    320,075.98/441,709.49 = 176,839.32/x
  3. Step 3: Cross multiply
    320,075.98x = 441,709.49 × 176,839.32
  4. Step 4: Simplify right side
    320,075.98x = 78,111,606,291.25
  5. Step 5: Solve for x
    x = 78,111,606,291.25/320,075.98
  6. Step 6: Final answer
    x = 244,040.83

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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.