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Finding the Fourth Proportional to 862,274,603.80, 1,293,411,905.70 and 248,878,840.60

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Solution

The fourth proportional to 862,274,603.80, 1,293,411,905.70 and 248,878,840.60 is: 373,318,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,274,603.80 : 1,293,411,905.70 = 248,878,840.60 : x
  2. Step 2: Convert to fraction form
    862,274,603.80/1,293,411,905.70 = 248,878,840.60/x
  3. Step 3: Cross multiply
    862,274,603.80x = 1,293,411,905.70 × 248,878,840.60
  4. Step 4: Simplify right side
    862,274,603.80x = 321,902,855,508,852,544
  5. Step 5: Solve for x
    x = 321,902,855,508,852,544/862,274,603.80
  6. Step 6: Final answer
    x = 373,318,260.90

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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.