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Finding the Fourth Proportional to 620,544.40, 856,452.92 and 517,014.52

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Solution

The fourth proportional to 620,544.40, 856,452.92 and 517,014.52 is: 713,564.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,544.40 : 856,452.92 = 517,014.52 : x
  2. Step 2: Convert to fraction form
    620,544.40/856,452.92 = 517,014.52/x
  3. Step 3: Cross multiply
    620,544.40x = 856,452.92 × 517,014.52
  4. Step 4: Simplify right side
    620,544.40x = 442,798,595,336.40
  5. Step 5: Solve for x
    x = 442,798,595,336.40/620,544.40
  6. Step 6: Final answer
    x = 713,564.73

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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.