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Finding the Fourth Proportional to 319,495.05, 440,900.28 and 176,256.27

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Solution

The fourth proportional to 319,495.05, 440,900.28 and 176,256.27 is: 243,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,495.05 : 440,900.28 = 176,256.27 : x
  2. Step 2: Convert to fraction form
    319,495.05/440,900.28 = 176,256.27/x
  3. Step 3: Cross multiply
    319,495.05x = 440,900.28 × 176,256.27
  4. Step 4: Simplify right side
    319,495.05x = 77,711,438,794.76
  5. Step 5: Solve for x
    x = 77,711,438,794.76/319,495.05
  6. Step 6: Final answer
    x = 243,232.06

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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.