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Finding the Fourth Proportional to 329,515.40, 454,750.80 and 186,288.77

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Solution

The fourth proportional to 329,515.40, 454,750.80 and 186,288.77 is: 257,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,515.40 : 454,750.80 = 186,288.77 : x
  2. Step 2: Convert to fraction form
    329,515.40/454,750.80 = 186,288.77/x
  3. Step 3: Cross multiply
    329,515.40x = 454,750.80 × 186,288.77
  4. Step 4: Simplify right side
    329,515.40x = 84,714,967,188.52
  5. Step 5: Solve for x
    x = 84,714,967,188.52/329,515.40
  6. Step 6: Final answer
    x = 257,089.55

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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.