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Finding the Fourth Proportional to 837,648.46, 1,155,954 and 455,674.33

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Solution

The fourth proportional to 837,648.46, 1,155,954 and 455,674.33 is: 628,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,648.46 : 1,155,954 = 455,674.33 : x
  2. Step 2: Convert to fraction form
    837,648.46/1,155,954 = 455,674.33/x
  3. Step 3: Cross multiply
    837,648.46x = 1,155,954 × 455,674.33
  4. Step 4: Simplify right side
    837,648.46x = 526,738,564,460.82
  5. Step 5: Solve for x
    x = 526,738,564,460.82/837,648.46
  6. Step 6: Final answer
    x = 628,830.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.