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Finding the Fourth Proportional to 319,715.49, 441,207.41 and 176,475.56

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Solution

The fourth proportional to 319,715.49, 441,207.41 and 176,475.56 is: 243,536.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,715.49 : 441,207.41 = 176,475.56 : x
  2. Step 2: Convert to fraction form
    319,715.49/441,207.41 = 176,475.56/x
  3. Step 3: Cross multiply
    319,715.49x = 441,207.41 × 176,475.56
  4. Step 4: Simplify right side
    319,715.49x = 77,862,324,094.07
  5. Step 5: Solve for x
    x = 77,862,324,094.07/319,715.49
  6. Step 6: Final answer
    x = 243,536.29

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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.