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Finding the Fourth Proportional to 628,078.04, 866,722.74 and 341,597.96

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Solution

The fourth proportional to 628,078.04, 866,722.74 and 341,597.96 is: 471,391.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,078.04 : 866,722.74 = 341,597.96 : x
  2. Step 2: Convert to fraction form
    628,078.04/866,722.74 = 341,597.96/x
  3. Step 3: Cross multiply
    628,078.04x = 866,722.74 × 341,597.96
  4. Step 4: Simplify right side
    628,078.04x = 296,070,719,869.61
  5. Step 5: Solve for x
    x = 296,070,719,869.61/628,078.04
  6. Step 6: Final answer
    x = 471,391.61

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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.