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Finding the Fourth Proportional to 403,314.99, 604,968.37 and 103,794.40

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Solution

The fourth proportional to 403,314.99, 604,968.37 and 103,794.40 is: 155,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,314.99 : 604,968.37 = 103,794.40 : x
  2. Step 2: Convert to fraction form
    403,314.99/604,968.37 = 103,794.40/x
  3. Step 3: Cross multiply
    403,314.99x = 604,968.37 × 103,794.40
  4. Step 4: Simplify right side
    403,314.99x = 62,792,329,479.85
  5. Step 5: Solve for x
    x = 62,792,329,479.85/403,314.99
  6. Step 6: Final answer
    x = 155,690.54

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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.