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Finding the Fourth Proportional to 428,324.01, 590,930.74 and 256,246.93

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Solution

The fourth proportional to 428,324.01, 590,930.74 and 256,246.93 is: 353,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,324.01 : 590,930.74 = 256,246.93 : x
  2. Step 2: Convert to fraction form
    428,324.01/590,930.74 = 256,246.93/x
  3. Step 3: Cross multiply
    428,324.01x = 590,930.74 × 256,246.93
  4. Step 4: Simplify right side
    428,324.01x = 151,424,187,967.63
  5. Step 5: Solve for x
    x = 151,424,187,967.63/428,324.01
  6. Step 6: Final answer
    x = 353,527.20

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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.