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Finding the Fourth Proportional to 475,793,459.78, 713,674,485.38 and 195,664,679.78

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Solution

The fourth proportional to 475,793,459.78, 713,674,485.38 and 195,664,679.78 is: 293,490,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,793,459.78 : 713,674,485.38 = 195,664,679.78 : x
  2. Step 2: Convert to fraction form
    475,793,459.78/713,674,485.38 = 195,664,679.78/x
  3. Step 3: Cross multiply
    475,793,459.78x = 713,674,485.38 × 195,664,679.78
  4. Step 4: Simplify right side
    475,793,459.78x = 139,640,889,645,954,800
  5. Step 5: Solve for x
    x = 139,640,889,645,954,800/475,793,459.78
  6. Step 6: Final answer
    x = 293,490,561.45

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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.