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Finding the Fourth Proportional to 666,098,988.48, 919,227,491.46 and 364,679,274.24

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Solution

The fourth proportional to 666,098,988.48, 919,227,491.46 and 364,679,274.24 is: 503,263,359.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,098,988.48 : 919,227,491.46 = 364,679,274.24 : x
  2. Step 2: Convert to fraction form
    666,098,988.48/919,227,491.46 = 364,679,274.24/x
  3. Step 3: Cross multiply
    666,098,988.48x = 919,227,491.46 × 364,679,274.24
  4. Step 4: Simplify right side
    666,098,988.48x = 335,223,214,447,088,640
  5. Step 5: Solve for x
    x = 335,223,214,447,088,640/666,098,988.48
  6. Step 6: Final answer
    x = 503,263,359.12

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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.