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Finding the Fourth Proportional to 316,903.39, 437,324.13 and 173,663.06

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Solution

The fourth proportional to 316,903.39, 437,324.13 and 173,663.06 is: 239,653.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,903.39 : 437,324.13 = 173,663.06 : x
  2. Step 2: Convert to fraction form
    316,903.39/437,324.13 = 173,663.06/x
  3. Step 3: Cross multiply
    316,903.39x = 437,324.13 × 173,663.06
  4. Step 4: Simplify right side
    316,903.39x = 75,947,044,441.02
  5. Step 5: Solve for x
    x = 75,947,044,441.02/316,903.39
  6. Step 6: Final answer
    x = 239,653.62

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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.