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Finding the Fourth Proportional to 610,628,554.77, 916,330,239.11 and 260,877,257.77

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Solution

The fourth proportional to 610,628,554.77, 916,330,239.11 and 260,877,257.77 is: 391,481,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,628,554.77 : 916,330,239.11 = 260,877,257.77 : x
  2. Step 2: Convert to fraction form
    610,628,554.77/916,330,239.11 = 260,877,257.77/x
  3. Step 3: Cross multiply
    610,628,554.77x = 916,330,239.11 × 260,877,257.77
  4. Step 4: Simplify right side
    610,628,554.77x = 239,049,719,989,440,832
  5. Step 5: Solve for x
    x = 239,049,719,989,440,832/610,628,554.77
  6. Step 6: Final answer
    x = 391,481,397.52

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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.