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Finding the Fourth Proportional to 625,882,079.08, 863,741,559.93 and 343,636,416.57

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Solution

The fourth proportional to 625,882,079.08, 863,741,559.93 and 343,636,416.57 is: 474,231,591.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,882,079.08 : 863,741,559.93 = 343,636,416.57 : x
  2. Step 2: Convert to fraction form
    625,882,079.08/863,741,559.93 = 343,636,416.57/x
  3. Step 3: Cross multiply
    625,882,079.08x = 863,741,559.93 × 343,636,416.57
  4. Step 4: Simplify right side
    625,882,079.08x = 296,813,054,496,927,104
  5. Step 5: Solve for x
    x = 296,813,054,496,927,104/625,882,079.08
  6. Step 6: Final answer
    x = 474,231,591.57

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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.