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Finding the Fourth Proportional to 483,146.76, 666,693.80 and 282,059.40

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Solution

The fourth proportional to 483,146.76, 666,693.80 and 282,059.40 is: 389,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,146.76 : 666,693.80 = 282,059.40 : x
  2. Step 2: Convert to fraction form
    483,146.76/666,693.80 = 282,059.40/x
  3. Step 3: Cross multiply
    483,146.76x = 666,693.80 × 282,059.40
  4. Step 4: Simplify right side
    483,146.76x = 188,047,256,945.83
  5. Step 5: Solve for x
    x = 188,047,256,945.83/483,146.76
  6. Step 6: Final answer
    x = 389,213.53

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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.