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Finding the Fourth Proportional to 319,527.60, 440,940.66 and 176,287.58

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Solution

The fourth proportional to 319,527.60, 440,940.66 and 176,287.58 is: 243,272.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,527.60 : 440,940.66 = 176,287.58 : x
  2. Step 2: Convert to fraction form
    319,527.60/440,940.66 = 176,287.58/x
  3. Step 3: Cross multiply
    319,527.60x = 440,940.66 × 176,287.58
  4. Step 4: Simplify right side
    319,527.60x = 77,732,361,875.00
  5. Step 5: Solve for x
    x = 77,732,361,875.00/319,527.60
  6. Step 6: Final answer
    x = 243,272.76

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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.