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Finding the Fourth Proportional to 622,715.90, 933,347.98 and 285,792.14

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Solution

The fourth proportional to 622,715.90, 933,347.98 and 285,792.14 is: 428,355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,715.90 : 933,347.98 = 285,792.14 : x
  2. Step 2: Convert to fraction form
    622,715.90/933,347.98 = 285,792.14/x
  3. Step 3: Cross multiply
    622,715.90x = 933,347.98 × 285,792.14
  4. Step 4: Simplify right side
    622,715.90x = 266,743,516,568.88
  5. Step 5: Solve for x
    x = 266,743,516,568.88/622,715.90
  6. Step 6: Final answer
    x = 428,355.08

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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.