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Finding the Fourth Proportional to 554,962,606.92, 765,659,857.86 and 316,636,580.34

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Solution

The fourth proportional to 554,962,606.92, 765,659,857.86 and 316,636,580.34 is: 436,850,908.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,962,606.92 : 765,659,857.86 = 316,636,580.34 : x
  2. Step 2: Convert to fraction form
    554,962,606.92/765,659,857.86 = 316,636,580.34/x
  3. Step 3: Cross multiply
    554,962,606.92x = 765,659,857.86 × 316,636,580.34
  4. Step 4: Simplify right side
    554,962,606.92x = 242,435,919,096,400,864
  5. Step 5: Solve for x
    x = 242,435,919,096,400,864/554,962,606.92
  6. Step 6: Final answer
    x = 436,850,908.64

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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.