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Finding the Fourth Proportional to 614,790.51, 848,409.26 and 342,858.72

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Solution

The fourth proportional to 614,790.51, 848,409.26 and 342,858.72 is: 473,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,790.51 : 848,409.26 = 342,858.72 : x
  2. Step 2: Convert to fraction form
    614,790.51/848,409.26 = 342,858.72/x
  3. Step 3: Cross multiply
    614,790.51x = 848,409.26 × 342,858.72
  4. Step 4: Simplify right side
    614,790.51x = 290,884,512,919.75
  5. Step 5: Solve for x
    x = 290,884,512,919.75/614,790.51
  6. Step 6: Final answer
    x = 473,144.12

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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.