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Finding the Fourth Proportional to 622,079.60, 934,103.55 and 472,488.80

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Solution

The fourth proportional to 622,079.60, 934,103.55 and 472,488.80 is: 709,480.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,079.60 : 934,103.55 = 472,488.80 : x
  2. Step 2: Convert to fraction form
    622,079.60/934,103.55 = 472,488.80/x
  3. Step 3: Cross multiply
    622,079.60x = 934,103.55 × 472,488.80
  4. Step 4: Simplify right side
    622,079.60x = 441,353,465,415.24
  5. Step 5: Solve for x
    x = 441,353,465,415.24/622,079.60
  6. Step 6: Final answer
    x = 709,480.69

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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.