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Finding the Fourth Proportional to 489,905,204, 734,602,662.48 and 231,050,918.48

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Solution

The fourth proportional to 489,905,204, 734,602,662.48 and 231,050,918.48 is: 346,456,045.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,905,204 : 734,602,662.48 = 231,050,918.48 : x
  2. Step 2: Convert to fraction form
    489,905,204/734,602,662.48 = 231,050,918.48/x
  3. Step 3: Cross multiply
    489,905,204x = 734,602,662.48 × 231,050,918.48
  4. Step 4: Simplify right side
    489,905,204x = 169,730,619,883,857,440
  5. Step 5: Solve for x
    x = 169,730,619,883,857,440/489,905,204
  6. Step 6: Final answer
    x = 346,456,045.98

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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.