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Finding the Fourth Proportional to 615,046,373.70, 848,763,443.00 and 347,178,601.77

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Solution

The fourth proportional to 615,046,373.70, 848,763,443.00 and 347,178,601.77 is: 479,106,158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,046,373.70 : 848,763,443.00 = 347,178,601.77 : x
  2. Step 2: Convert to fraction form
    615,046,373.70/848,763,443.00 = 347,178,601.77/x
  3. Step 3: Cross multiply
    615,046,373.70x = 848,763,443.00 × 347,178,601.77
  4. Step 4: Simplify right side
    615,046,373.70x = 294,672,505,375,099,072
  5. Step 5: Solve for x
    x = 294,672,505,375,099,072/615,046,373.70
  6. Step 6: Final answer
    x = 479,106,158.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.