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Finding the Fourth Proportional to 319,805.50, 441,328.72 and 176,562.46

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Solution

The fourth proportional to 319,805.50, 441,328.72 and 176,562.46 is: 243,654.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,805.50 : 441,328.72 = 176,562.46 : x
  2. Step 2: Convert to fraction form
    319,805.50/441,328.72 = 176,562.46/x
  3. Step 3: Cross multiply
    319,805.50x = 441,328.72 × 176,562.46
  4. Step 4: Simplify right side
    319,805.50x = 77,922,084,471.85
  5. Step 5: Solve for x
    x = 77,922,084,471.85/319,805.50
  6. Step 6: Final answer
    x = 243,654.61

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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.