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Finding the Fourth Proportional to 251,942.40, 356,918.40 and 251,942.40

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Solution

The fourth proportional to 251,942.40, 356,918.40 and 251,942.40 is: 356,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,942.40 : 356,918.40 = 251,942.40 : x
  2. Step 2: Convert to fraction form
    251,942.40/356,918.40 = 251,942.40/x
  3. Step 3: Cross multiply
    251,942.40x = 356,918.40 × 251,942.40
  4. Step 4: Simplify right side
    251,942.40x = 89,922,878,300.16
  5. Step 5: Solve for x
    x = 89,922,878,300.16/251,942.40
  6. Step 6: Final answer
    x = 356,918.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.