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Finding the Fourth Proportional to 400,402.80, 552,315.66 and 264,436.98

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Solution

The fourth proportional to 400,402.80, 552,315.66 and 264,436.98 is: 364,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,402.80 : 552,315.66 = 264,436.98 : x
  2. Step 2: Convert to fraction form
    400,402.80/552,315.66 = 264,436.98/x
  3. Step 3: Cross multiply
    400,402.80x = 552,315.66 × 264,436.98
  4. Step 4: Simplify right side
    400,402.80x = 146,052,685,137.11
  5. Step 5: Solve for x
    x = 146,052,685,137.11/400,402.80
  6. Step 6: Final answer
    x = 364,764.40

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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.