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Finding the Fourth Proportional to 1,054,841,978.88, 1,582,489,745.64 and 355,403,619

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Solution

The fourth proportional to 1,054,841,978.88, 1,582,489,745.64 and 355,403,619 is: 533,181,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,841,978.88 : 1,582,489,745.64 = 355,403,619 : x
  2. Step 2: Convert to fraction form
    1,054,841,978.88/1,582,489,745.64 = 355,403,619/x
  3. Step 3: Cross multiply
    1,054,841,978.88x = 1,582,489,745.64 × 355,403,619
  4. Step 4: Simplify right side
    1,054,841,978.88x = 562,422,582,630,845,504
  5. Step 5: Solve for x
    x = 562,422,582,630,845,504/1,054,841,978.88
  6. Step 6: Final answer
    x = 533,181,835.66

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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.