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Finding the Fourth Proportional to 561,362.23, 775,023.18 and 365,315.51

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Solution

The fourth proportional to 561,362.23, 775,023.18 and 365,315.51 is: 504,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,362.23 : 775,023.18 = 365,315.51 : x
  2. Step 2: Convert to fraction form
    561,362.23/775,023.18 = 365,315.51/x
  3. Step 3: Cross multiply
    561,362.23x = 775,023.18 × 365,315.51
  4. Step 4: Simplify right side
    561,362.23x = 283,127,987,678.84
  5. Step 5: Solve for x
    x = 283,127,987,678.84/561,362.23
  6. Step 6: Final answer
    x = 504,358.81

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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.