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Finding the Fourth Proportional to 631,314,002.68, 947,021,491.00 and 216,623,947.37

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Solution

The fourth proportional to 631,314,002.68, 947,021,491.00 and 216,623,947.37 is: 324,953,244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,314,002.68 : 947,021,491.00 = 216,623,947.37 : x
  2. Step 2: Convert to fraction form
    631,314,002.68/947,021,491.00 = 216,623,947.37/x
  3. Step 3: Cross multiply
    631,314,002.68x = 947,021,491.00 × 216,623,947.37
  4. Step 4: Simplify right side
    631,314,002.68x = 205,147,533,624,279,104
  5. Step 5: Solve for x
    x = 205,147,533,624,279,104/631,314,002.68
  6. Step 6: Final answer
    x = 324,953,244.74

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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.