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Finding the Fourth Proportional to 614,829.61, 848,465.58 and 339,181.21

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Solution

The fourth proportional to 614,829.61, 848,465.58 and 339,181.21 is: 468,070.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,829.61 : 848,465.58 = 339,181.21 : x
  2. Step 2: Convert to fraction form
    614,829.61/848,465.58 = 339,181.21/x
  3. Step 3: Cross multiply
    614,829.61x = 848,465.58 × 339,181.21
  4. Step 4: Simplify right side
    614,829.61x = 287,783,582,067.75
  5. Step 5: Solve for x
    x = 287,783,582,067.75/614,829.61
  6. Step 6: Final answer
    x = 468,070.47

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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.