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Finding the Fourth Proportional to 404,874.90, 606,923.55 and 314,867.70

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Solution

The fourth proportional to 404,874.90, 606,923.55 and 314,867.70 is: 471,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,874.90 : 606,923.55 = 314,867.70 : x
  2. Step 2: Convert to fraction form
    404,874.90/606,923.55 = 314,867.70/x
  3. Step 3: Cross multiply
    404,874.90x = 606,923.55 × 314,867.70
  4. Step 4: Simplify right side
    404,874.90x = 191,100,622,264.34
  5. Step 5: Solve for x
    x = 191,100,622,264.34/404,874.90
  6. Step 6: Final answer
    x = 471,999.18

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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.