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Finding the Fourth Proportional to 303,986.16, 419,553 and 176,735.58

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Solution

The fourth proportional to 303,986.16, 419,553 and 176,735.58 is: 243,925.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,986.16 : 419,553 = 176,735.58 : x
  2. Step 2: Convert to fraction form
    303,986.16/419,553 = 176,735.58/x
  3. Step 3: Cross multiply
    303,986.16x = 419,553 × 176,735.58
  4. Step 4: Simplify right side
    303,986.16x = 74,149,942,795.74
  5. Step 5: Solve for x
    x = 74,149,942,795.74/303,986.16
  6. Step 6: Final answer
    x = 243,925.39

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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.