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Finding the Fourth Proportional to 319,716.72, 441,212.67 and 176,482.80

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Solution

The fourth proportional to 319,716.72, 441,212.67 and 176,482.80 is: 243,548.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,716.72 : 441,212.67 = 176,482.80 : x
  2. Step 2: Convert to fraction form
    319,716.72/441,212.67 = 176,482.80/x
  3. Step 3: Cross multiply
    319,716.72x = 441,212.67 × 176,482.80
  4. Step 4: Simplify right side
    319,716.72x = 77,866,447,397.08
  5. Step 5: Solve for x
    x = 77,866,447,397.08/319,716.72
  6. Step 6: Final answer
    x = 243,548.25

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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.