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Finding the Fourth Proportional to 906,044,388.72, 1,358,845,735.68 and 250,978,402.32

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Solution

The fourth proportional to 906,044,388.72, 1,358,845,735.68 and 250,978,402.32 is: 376,406,427.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,044,388.72 : 1,358,845,735.68 = 250,978,402.32 : x
  2. Step 2: Convert to fraction form
    906,044,388.72/1,358,845,735.68 = 250,978,402.32/x
  3. Step 3: Cross multiply
    906,044,388.72x = 1,358,845,735.68 × 250,978,402.32
  4. Step 4: Simplify right side
    906,044,388.72x = 341,040,931,740,311,424
  5. Step 5: Solve for x
    x = 341,040,931,740,311,424/906,044,388.72
  6. Step 6: Final answer
    x = 376,406,427.75

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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.