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Finding the Fourth Proportional to 713,637,757.96, 984,740,230.71 and 396,111,388.94

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Solution

The fourth proportional to 713,637,757.96, 984,740,230.71 and 396,111,388.94 is: 546,589,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,637,757.96 : 984,740,230.71 = 396,111,388.94 : x
  2. Step 2: Convert to fraction form
    713,637,757.96/984,740,230.71 = 396,111,388.94/x
  3. Step 3: Cross multiply
    713,637,757.96x = 984,740,230.71 × 396,111,388.94
  4. Step 4: Simplify right side
    713,637,757.96x = 390,066,820,529,653,632
  5. Step 5: Solve for x
    x = 390,066,820,529,653,632/713,637,757.96
  6. Step 6: Final answer
    x = 546,589,381.21

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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.