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Finding the Fourth Proportional to 652,536,052.40, 978,804,078.60 and 376,659,124.40

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Solution

The fourth proportional to 652,536,052.40, 978,804,078.60 and 376,659,124.40 is: 564,988,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,536,052.40 : 978,804,078.60 = 376,659,124.40 : x
  2. Step 2: Convert to fraction form
    652,536,052.40/978,804,078.60 = 376,659,124.40/x
  3. Step 3: Cross multiply
    652,536,052.40x = 978,804,078.60 × 376,659,124.40
  4. Step 4: Simplify right side
    652,536,052.40x = 368,675,487,204,624,768
  5. Step 5: Solve for x
    x = 368,675,487,204,624,768/652,536,052.40
  6. Step 6: Final answer
    x = 564,988,686.60

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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.