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Finding the Fourth Proportional to 622,199.71, 933,661.78 and 262,347.98

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Solution

The fourth proportional to 622,199.71, 933,661.78 and 262,347.98 is: 393,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,199.71 : 933,661.78 = 262,347.98 : x
  2. Step 2: Convert to fraction form
    622,199.71/933,661.78 = 262,347.98/x
  3. Step 3: Cross multiply
    622,199.71x = 933,661.78 × 262,347.98
  4. Step 4: Simplify right side
    622,199.71x = 244,944,281,986.20
  5. Step 5: Solve for x
    x = 244,944,281,986.20/622,199.71
  6. Step 6: Final answer
    x = 393,674.70

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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.