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Finding the Fourth Proportional to 395,595.99, 591,222.15 and 289,203.93

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Solution

The fourth proportional to 395,595.99, 591,222.15 and 289,203.93 is: 432,218.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,595.99 : 591,222.15 = 289,203.93 : x
  2. Step 2: Convert to fraction form
    395,595.99/591,222.15 = 289,203.93/x
  3. Step 3: Cross multiply
    395,595.99x = 591,222.15 × 289,203.93
  4. Step 4: Simplify right side
    395,595.99x = 170,983,769,283.05
  5. Step 5: Solve for x
    x = 170,983,769,283.05/395,595.99
  6. Step 6: Final answer
    x = 432,218.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.