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Finding the Fourth Proportional to 398,653.06, 598,259.79 and 360,538.77

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Solution

The fourth proportional to 398,653.06, 598,259.79 and 360,538.77 is: 541,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,653.06 : 598,259.79 = 360,538.77 : x
  2. Step 2: Convert to fraction form
    398,653.06/598,259.79 = 360,538.77/x
  3. Step 3: Cross multiply
    398,653.06x = 598,259.79 × 360,538.77
  4. Step 4: Simplify right side
    398,653.06x = 215,695,848,827.06
  5. Step 5: Solve for x
    x = 215,695,848,827.06/398,653.06
  6. Step 6: Final answer
    x = 541,061.57

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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.