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Finding the Fourth Proportional to 622,791,372.40, 933,549,329.40 and 363,873,317.20

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Solution

The fourth proportional to 622,791,372.40, 933,549,329.40 and 363,873,317.20 is: 545,437,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,791,372.40 : 933,549,329.40 = 363,873,317.20 : x
  2. Step 2: Convert to fraction form
    622,791,372.40/933,549,329.40 = 363,873,317.20/x
  3. Step 3: Cross multiply
    622,791,372.40x = 933,549,329.40 × 363,873,317.20
  4. Step 4: Simplify right side
    622,791,372.40x = 339,693,691,258,613,440
  5. Step 5: Solve for x
    x = 339,693,691,258,613,440/622,791,372.40
  6. Step 6: Final answer
    x = 545,437,374.88

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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.