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Finding the Fourth Proportional to 400,415.94, 552,333.78 and 264,450.15

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Solution

The fourth proportional to 400,415.94, 552,333.78 and 264,450.15 is: 364,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,415.94 : 552,333.78 = 264,450.15 : x
  2. Step 2: Convert to fraction form
    400,415.94/552,333.78 = 264,450.15/x
  3. Step 3: Cross multiply
    400,415.94x = 552,333.78 × 264,450.15
  4. Step 4: Simplify right side
    400,415.94x = 146,064,750,971.07
  5. Step 5: Solve for x
    x = 146,064,750,971.07/400,415.94
  6. Step 6: Final answer
    x = 364,782.56

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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.