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Finding the Fourth Proportional to 614,790.85, 848,409.69 and 342,859.03

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Solution

The fourth proportional to 614,790.85, 848,409.69 and 342,859.03 is: 473,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,790.85 : 848,409.69 = 342,859.03 : x
  2. Step 2: Convert to fraction form
    614,790.85/848,409.69 = 342,859.03/x
  3. Step 3: Cross multiply
    614,790.85x = 848,409.69 × 342,859.03
  4. Step 4: Simplify right side
    614,790.85x = 290,884,923,356.00
  5. Step 5: Solve for x
    x = 290,884,923,356.00/614,790.85
  6. Step 6: Final answer
    x = 473,144.52

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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.