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Finding the Fourth Proportional to 469,390.17, 703,804.05 and 149,403.87

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Solution

The fourth proportional to 469,390.17, 703,804.05 and 149,403.87 is: 224,016.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,390.17 : 703,804.05 = 149,403.87 : x
  2. Step 2: Convert to fraction form
    469,390.17/703,804.05 = 149,403.87/x
  3. Step 3: Cross multiply
    469,390.17x = 703,804.05 × 149,403.87
  4. Step 4: Simplify right side
    469,390.17x = 105,151,048,791.67
  5. Step 5: Solve for x
    x = 105,151,048,791.67/469,390.17
  6. Step 6: Final answer
    x = 224,016.30

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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.