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Finding the Fourth Proportional to 536,648.68, 740,413.50 and 321,710.32

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Solution

The fourth proportional to 536,648.68, 740,413.50 and 321,710.32 is: 443,863.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,648.68 : 740,413.50 = 321,710.32 : x
  2. Step 2: Convert to fraction form
    536,648.68/740,413.50 = 321,710.32/x
  3. Step 3: Cross multiply
    536,648.68x = 740,413.50 × 321,710.32
  4. Step 4: Simplify right side
    536,648.68x = 238,198,664,017.32
  5. Step 5: Solve for x
    x = 238,198,664,017.32/536,648.68
  6. Step 6: Final answer
    x = 443,863.32

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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.