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Finding the Fourth Proportional to 702,082,118.96, 968,406,801.58 and 451,503,307.22

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Solution

The fourth proportional to 702,082,118.96, 968,406,801.58 and 451,503,307.22 is: 622,774,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,082,118.96 : 968,406,801.58 = 451,503,307.22 : x
  2. Step 2: Convert to fraction form
    702,082,118.96/968,406,801.58 = 451,503,307.22/x
  3. Step 3: Cross multiply
    702,082,118.96x = 968,406,801.58 × 451,503,307.22
  4. Step 4: Simplify right side
    702,082,118.96x = 437,238,873,650,145,792
  5. Step 5: Solve for x
    x = 437,238,873,650,145,792/702,082,118.96
  6. Step 6: Final answer
    x = 622,774,547.09

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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.