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Finding the Fourth Proportional to 2,652,208,717.60, 3,978,313,076.40 and 904,830,709.60

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Solution

The fourth proportional to 2,652,208,717.60, 3,978,313,076.40 and 904,830,709.60 is: 1,357,246,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,208,717.60 : 3,978,313,076.40 = 904,830,709.60 : x
  2. Step 2: Convert to fraction form
    2,652,208,717.60/3,978,313,076.40 = 904,830,709.60/x
  3. Step 3: Cross multiply
    2,652,208,717.60x = 3,978,313,076.40 × 904,830,709.60
  4. Step 4: Simplify right side
    2,652,208,717.60x = 3,599,699,843,929,971,200
  5. Step 5: Solve for x
    x = 3,599,699,843,929,971,200/2,652,208,717.60
  6. Step 6: Final answer
    x = 1,357,246,064.40

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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.