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Finding the Fourth Proportional to 419,860,502.93, 579,522,750.86 and 243,705,249.32

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Solution

The fourth proportional to 419,860,502.93, 579,522,750.86 and 243,705,249.32 is: 336,380,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,860,502.93 : 579,522,750.86 = 243,705,249.32 : x
  2. Step 2: Convert to fraction form
    419,860,502.93/579,522,750.86 = 243,705,249.32/x
  3. Step 3: Cross multiply
    419,860,502.93x = 579,522,750.86 × 243,705,249.32
  4. Step 4: Simplify right side
    419,860,502.93x = 141,232,736,482,660,176
  5. Step 5: Solve for x
    x = 141,232,736,482,660,176/419,860,502.93
  6. Step 6: Final answer
    x = 336,380,144.11

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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.