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Finding the Fourth Proportional to 652,410,012.60, 978,615,018.90 and 362,172,367.80

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Solution

The fourth proportional to 652,410,012.60, 978,615,018.90 and 362,172,367.80 is: 543,258,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,410,012.60 : 978,615,018.90 = 362,172,367.80 : x
  2. Step 2: Convert to fraction form
    652,410,012.60/978,615,018.90 = 362,172,367.80/x
  3. Step 3: Cross multiply
    652,410,012.60x = 978,615,018.90 × 362,172,367.80
  4. Step 4: Simplify right side
    652,410,012.60x = 354,427,318,559,654,784
  5. Step 5: Solve for x
    x = 354,427,318,559,654,784/652,410,012.60
  6. Step 6: Final answer
    x = 543,258,551.70

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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.