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Finding the Fourth Proportional to 328,384.92, 453,162.12 and 185,143.70

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Solution

The fourth proportional to 328,384.92, 453,162.12 and 185,143.70 is: 255,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,384.92 : 453,162.12 = 185,143.70 : x
  2. Step 2: Convert to fraction form
    328,384.92/453,162.12 = 185,143.70/x
  3. Step 3: Cross multiply
    328,384.92x = 453,162.12 × 185,143.70
  4. Step 4: Simplify right side
    328,384.92x = 83,900,111,596.64
  5. Step 5: Solve for x
    x = 83,900,111,596.64/328,384.92
  6. Step 6: Final answer
    x = 255,493.19

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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.