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Finding the Fourth Proportional to 442,400.44, 610,511.52 and 251,413.60

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Solution

The fourth proportional to 442,400.44, 610,511.52 and 251,413.60 is: 346,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,400.44 : 610,511.52 = 251,413.60 : x
  2. Step 2: Convert to fraction form
    442,400.44/610,511.52 = 251,413.60/x
  3. Step 3: Cross multiply
    442,400.44x = 610,511.52 × 251,413.60
  4. Step 4: Simplify right side
    442,400.44x = 153,490,899,084.67
  5. Step 5: Solve for x
    x = 153,490,899,084.67/442,400.44
  6. Step 6: Final answer
    x = 346,950.15

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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.