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Finding the Fourth Proportional to 405,959.16, 560,087.04 and 236,053.56

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Solution

The fourth proportional to 405,959.16, 560,087.04 and 236,053.56 is: 325,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,959.16 : 560,087.04 = 236,053.56 : x
  2. Step 2: Convert to fraction form
    405,959.16/560,087.04 = 236,053.56/x
  3. Step 3: Cross multiply
    405,959.16x = 560,087.04 × 236,053.56
  4. Step 4: Simplify right side
    405,959.16x = 132,210,539,701.86
  5. Step 5: Solve for x
    x = 132,210,539,701.86/405,959.16
  6. Step 6: Final answer
    x = 325,674.48

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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.