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Finding the Fourth Proportional to 500,178.87, 690,058.41 and 328,191.77

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Solution

The fourth proportional to 500,178.87, 690,058.41 and 328,191.77 is: 452,781.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,178.87 : 690,058.41 = 328,191.77 : x
  2. Step 2: Convert to fraction form
    500,178.87/690,058.41 = 328,191.77/x
  3. Step 3: Cross multiply
    500,178.87x = 690,058.41 × 328,191.77
  4. Step 4: Simplify right side
    500,178.87x = 226,471,487,530.99
  5. Step 5: Solve for x
    x = 226,471,487,530.99/500,178.87
  6. Step 6: Final answer
    x = 452,781.00

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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.