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Finding the Fourth Proportional to 633,661.33, 874,159.52 and 561,138.13

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Solution

The fourth proportional to 633,661.33, 874,159.52 and 561,138.13 is: 774,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,661.33 : 874,159.52 = 561,138.13 : x
  2. Step 2: Convert to fraction form
    633,661.33/874,159.52 = 561,138.13/x
  3. Step 3: Cross multiply
    633,661.33x = 874,159.52 × 561,138.13
  4. Step 4: Simplify right side
    633,661.33x = 490,524,235,568.81
  5. Step 5: Solve for x
    x = 490,524,235,568.81/633,661.33
  6. Step 6: Final answer
    x = 774,111.05

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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.