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Finding the Fourth Proportional to 620,550.93, 856,452.93 and 378,972.48

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Solution

The fourth proportional to 620,550.93, 856,452.93 and 378,972.48 is: 523,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,550.93 : 856,452.93 = 378,972.48 : x
  2. Step 2: Convert to fraction form
    620,550.93/856,452.93 = 378,972.48/x
  3. Step 3: Cross multiply
    620,550.93x = 856,452.93 × 378,972.48
  4. Step 4: Simplify right side
    620,550.93x = 324,572,090,885.37
  5. Step 5: Solve for x
    x = 324,572,090,885.37/620,550.93
  6. Step 6: Final answer
    x = 523,038.60

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1.5x scale

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.