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Finding the Fourth Proportional to 1,331,212,728.24, 1,837,661,985.30 and 795,553,415.30

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Solution

The fourth proportional to 1,331,212,728.24, 1,837,661,985.30 and 795,553,415.30 is: 1,098,215,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,212,728.24 : 1,837,661,985.30 = 795,553,415.30 : x
  2. Step 2: Convert to fraction form
    1,331,212,728.24/1,837,661,985.30 = 795,553,415.30/x
  3. Step 3: Cross multiply
    1,331,212,728.24x = 1,837,661,985.30 × 795,553,415.30
  4. Step 4: Simplify right side
    1,331,212,728.24x = 1,461,958,268,579,931,136
  5. Step 5: Solve for x
    x = 1,461,958,268,579,931,136/1,331,212,728.24
  6. Step 6: Final answer
    x = 1,098,215,362.25

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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.