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Finding the Fourth Proportional to 582,956,560.40, 874,308,869.40 and 255,431,440.40

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Solution

The fourth proportional to 582,956,560.40, 874,308,869.40 and 255,431,440.40 is: 383,091,964.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,956,560.40 : 874,308,869.40 = 255,431,440.40 : x
  2. Step 2: Convert to fraction form
    582,956,560.40/874,308,869.40 = 255,431,440.40/x
  3. Step 3: Cross multiply
    582,956,560.40x = 874,308,869.40 × 255,431,440.40
  4. Step 4: Simplify right side
    582,956,560.40x = 223,325,973,865,337,472
  5. Step 5: Solve for x
    x = 223,325,973,865,337,472/582,956,560.40
  6. Step 6: Final answer
    x = 383,091,964.37

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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.