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Finding the Fourth Proportional to 590,478,915.70, 885,718,373.55 and 344,583,133.30

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Solution

The fourth proportional to 590,478,915.70, 885,718,373.55 and 344,583,133.30 is: 516,874,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,478,915.70 : 885,718,373.55 = 344,583,133.30 : x
  2. Step 2: Convert to fraction form
    590,478,915.70/885,718,373.55 = 344,583,133.30/x
  3. Step 3: Cross multiply
    590,478,915.70x = 885,718,373.55 × 344,583,133.30
  4. Step 4: Simplify right side
    590,478,915.70x = 305,203,612,379,238,848
  5. Step 5: Solve for x
    x = 305,203,612,379,238,848/590,478,915.70
  6. Step 6: Final answer
    x = 516,874,699.95

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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.