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Finding the Fourth Proportional to 380,562.06, 570,729.28 and 238,622.93

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Solution

The fourth proportional to 380,562.06, 570,729.28 and 238,622.93 is: 357,863.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,562.06 : 570,729.28 = 238,622.93 : x
  2. Step 2: Convert to fraction form
    380,562.06/570,729.28 = 238,622.93/x
  3. Step 3: Cross multiply
    380,562.06x = 570,729.28 × 238,622.93
  4. Step 4: Simplify right side
    380,562.06x = 136,189,093,030.39
  5. Step 5: Solve for x
    x = 136,189,093,030.39/380,562.06
  6. Step 6: Final answer
    x = 357,863.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.