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Finding the Fourth Proportional to 365,187,053.60, 503,664,282.20 and 321,039,659.20

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Solution

The fourth proportional to 365,187,053.60, 503,664,282.20 and 321,039,659.20 is: 442,776,401.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,187,053.60 : 503,664,282.20 = 321,039,659.20 : x
  2. Step 2: Convert to fraction form
    365,187,053.60/503,664,282.20 = 321,039,659.20/x
  3. Step 3: Cross multiply
    365,187,053.60x = 503,664,282.20 × 321,039,659.20
  4. Step 4: Simplify right side
    365,187,053.60x = 161,696,209,508,700,608
  5. Step 5: Solve for x
    x = 161,696,209,508,700,608/365,187,053.60
  6. Step 6: Final answer
    x = 442,776,401.61

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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.