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Finding the Fourth Proportional to 611,096,798.67, 916,710,795.60 and 261,379,187.07

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Solution

The fourth proportional to 611,096,798.67, 916,710,795.60 and 261,379,187.07 is: 392,096,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,096,798.67 : 916,710,795.60 = 261,379,187.07 : x
  2. Step 2: Convert to fraction form
    611,096,798.67/916,710,795.60 = 261,379,187.07/x
  3. Step 3: Cross multiply
    611,096,798.67x = 916,710,795.60 × 261,379,187.07
  4. Step 4: Simplify right side
    611,096,798.67x = 239,609,122,532,220,928
  5. Step 5: Solve for x
    x = 239,609,122,532,220,928/611,096,798.67
  6. Step 6: Final answer
    x = 392,096,838.10

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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.