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Finding the Fourth Proportional to 573,711,221.20, 860,566,831.80 and 185,573,286.85

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Solution

The fourth proportional to 573,711,221.20, 860,566,831.80 and 185,573,286.85 is: 278,359,930.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,711,221.20 : 860,566,831.80 = 185,573,286.85 : x
  2. Step 2: Convert to fraction form
    573,711,221.20/860,566,831.80 = 185,573,286.85/x
  3. Step 3: Cross multiply
    573,711,221.20x = 860,566,831.80 × 185,573,286.85
  4. Step 4: Simplify right side
    573,711,221.20x = 159,698,215,531,217,088
  5. Step 5: Solve for x
    x = 159,698,215,531,217,088/573,711,221.20
  6. Step 6: Final answer
    x = 278,359,930.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.