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Finding the Fourth Proportional to 556,120.81, 767,744.49 and 435,004.75

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Solution

The fourth proportional to 556,120.81, 767,744.49 and 435,004.75 is: 600,539.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,120.81 : 767,744.49 = 435,004.75 : x
  2. Step 2: Convert to fraction form
    556,120.81/767,744.49 = 435,004.75/x
  3. Step 3: Cross multiply
    556,120.81x = 767,744.49 × 435,004.75
  4. Step 4: Simplify right side
    556,120.81x = 333,972,499,936.33
  5. Step 5: Solve for x
    x = 333,972,499,936.33/556,120.81
  6. Step 6: Final answer
    x = 600,539.48

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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.