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Finding the Fourth Proportional to 614,837.76, 848,476.80 and 339,189.36

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Solution

The fourth proportional to 614,837.76, 848,476.80 and 339,189.36 is: 468,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,837.76 : 848,476.80 = 339,189.36 : x
  2. Step 2: Convert to fraction form
    614,837.76/848,476.80 = 339,189.36/x
  3. Step 3: Cross multiply
    614,837.76x = 848,476.80 × 339,189.36
  4. Step 4: Simplify right side
    614,837.76x = 287,794,302,766.85
  5. Step 5: Solve for x
    x = 287,794,302,766.85/614,837.76
  6. Step 6: Final answer
    x = 468,081.70

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1.5x scale

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.