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Finding the Fourth Proportional to 289,596.06, 399,642.03 and 176,418.81

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Solution

The fourth proportional to 289,596.06, 399,642.03 and 176,418.81 is: 243,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,596.06 : 399,642.03 = 176,418.81 : x
  2. Step 2: Convert to fraction form
    289,596.06/399,642.03 = 176,418.81/x
  3. Step 3: Cross multiply
    289,596.06x = 399,642.03 × 176,418.81
  4. Step 4: Simplify right side
    289,596.06x = 70,504,371,358.58
  5. Step 5: Solve for x
    x = 70,504,371,358.58/289,596.06
  6. Step 6: Final answer
    x = 243,457.63

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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.