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Finding the Fourth Proportional to 329,651.40, 454,947.12 and 186,436.92

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Solution

The fourth proportional to 329,651.40, 454,947.12 and 186,436.92 is: 257,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,651.40 : 454,947.12 = 186,436.92 : x
  2. Step 2: Convert to fraction form
    329,651.40/454,947.12 = 186,436.92/x
  3. Step 3: Cross multiply
    329,651.40x = 454,947.12 × 186,436.92
  4. Step 4: Simplify right side
    329,651.40x = 84,818,939,815.67
  5. Step 5: Solve for x
    x = 84,818,939,815.67/329,651.40
  6. Step 6: Final answer
    x = 257,298.89

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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.