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Finding the Fourth Proportional to 319,461.76, 440,858.46 and 176,219.74

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Solution

The fourth proportional to 319,461.76, 440,858.46 and 176,219.74 is: 243,183.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,461.76 : 440,858.46 = 176,219.74 : x
  2. Step 2: Convert to fraction form
    319,461.76/440,858.46 = 176,219.74/x
  3. Step 3: Cross multiply
    319,461.76x = 440,858.46 × 176,219.74
  4. Step 4: Simplify right side
    319,461.76x = 77,687,963,198.00
  5. Step 5: Solve for x
    x = 77,687,963,198.00/319,461.76
  6. Step 6: Final answer
    x = 243,183.92

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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.