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Finding the Fourth Proportional to 474,405.10, 654,686.42 and 259,548.76

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Solution

The fourth proportional to 474,405.10, 654,686.42 and 259,548.76 is: 358,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,405.10 : 654,686.42 = 259,548.76 : x
  2. Step 2: Convert to fraction form
    474,405.10/654,686.42 = 259,548.76/x
  3. Step 3: Cross multiply
    474,405.10x = 654,686.42 × 259,548.76
  4. Step 4: Simplify right side
    474,405.10x = 169,923,046,527.79
  5. Step 5: Solve for x
    x = 169,923,046,527.79/474,405.10
  6. Step 6: Final answer
    x = 358,181.32

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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.