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Finding the Fourth Proportional to 395,235.06, 593,443.08 and 389,330.16

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Solution

The fourth proportional to 395,235.06, 593,443.08 and 389,330.16 is: 584,576.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,235.06 : 593,443.08 = 389,330.16 : x
  2. Step 2: Convert to fraction form
    395,235.06/593,443.08 = 389,330.16/x
  3. Step 3: Cross multiply
    395,235.06x = 593,443.08 × 389,330.16
  4. Step 4: Simplify right side
    395,235.06x = 231,045,289,287.29
  5. Step 5: Solve for x
    x = 231,045,289,287.29/395,235.06
  6. Step 6: Final answer
    x = 584,576.91

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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.