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Finding the Fourth Proportional to 328,552.36, 453,401.64 and 185,311.96

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Solution

The fourth proportional to 328,552.36, 453,401.64 and 185,311.96 is: 255,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,552.36 : 453,401.64 = 185,311.96 : x
  2. Step 2: Convert to fraction form
    328,552.36/453,401.64 = 185,311.96/x
  3. Step 3: Cross multiply
    328,552.36x = 453,401.64 × 185,311.96
  4. Step 4: Simplify right side
    328,552.36x = 84,020,746,575.61
  5. Step 5: Solve for x
    x = 84,020,746,575.61/328,552.36
  6. Step 6: Final answer
    x = 255,730.16

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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.