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Finding the Fourth Proportional to 716,708,651.60, 988,529,872.02 and 540,504,073.64

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Solution

The fourth proportional to 716,708,651.60, 988,529,872.02 and 540,504,073.64 is: 745,497,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,708,651.60 : 988,529,872.02 = 540,504,073.64 : x
  2. Step 2: Convert to fraction form
    716,708,651.60/988,529,872.02 = 540,504,073.64/x
  3. Step 3: Cross multiply
    716,708,651.60x = 988,529,872.02 × 540,504,073.64
  4. Step 4: Simplify right side
    716,708,651.60x = 534,304,422,741,637,824
  5. Step 5: Solve for x
    x = 534,304,422,741,637,824/716,708,651.60
  6. Step 6: Final answer
    x = 745,497,381.05

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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.