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Finding the Fourth Proportional to 620,527.54, 856,327.53 and 352,255.54

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Solution

The fourth proportional to 620,527.54, 856,327.53 and 352,255.54 is: 486,112.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,527.54 : 856,327.53 = 352,255.54 : x
  2. Step 2: Convert to fraction form
    620,527.54/856,327.53 = 352,255.54/x
  3. Step 3: Cross multiply
    620,527.54x = 856,327.53 × 352,255.54
  4. Step 4: Simplify right side
    620,527.54x = 301,646,116,497.02
  5. Step 5: Solve for x
    x = 301,646,116,497.02/620,527.54
  6. Step 6: Final answer
    x = 486,112.38

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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.