Home / 603,318.32-831,993.33-407,515.40

Finding the Fourth Proportional to 603,318.32, 831,993.33 and 407,515.40

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Solution

The fourth proportional to 603,318.32, 831,993.33 and 407,515.40 is: 561,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,318.32 : 831,993.33 = 407,515.40 : x
  2. Step 2: Convert to fraction form
    603,318.32/831,993.33 = 407,515.40/x
  3. Step 3: Cross multiply
    603,318.32x = 831,993.33 × 407,515.40
  4. Step 4: Simplify right side
    603,318.32x = 339,050,094,672.28
  5. Step 5: Solve for x
    x = 339,050,094,672.28/603,318.32
  6. Step 6: Final answer
    x = 561,975.47

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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.