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Finding the Fourth Proportional to 565,838.28, 848,230.11 and 388,428.84

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Solution

The fourth proportional to 565,838.28, 848,230.11 and 388,428.84 is: 582,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,838.28 : 848,230.11 = 388,428.84 : x
  2. Step 2: Convert to fraction form
    565,838.28/848,230.11 = 388,428.84/x
  3. Step 3: Cross multiply
    565,838.28x = 848,230.11 × 388,428.84
  4. Step 4: Simplify right side
    565,838.28x = 329,477,037,680.37
  5. Step 5: Solve for x
    x = 329,477,037,680.37/565,838.28
  6. Step 6: Final answer
    x = 582,281.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.