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Finding the Fourth Proportional to 459,413.90, 633,991.71 and 255,460.44

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Solution

The fourth proportional to 459,413.90, 633,991.71 and 255,460.44 is: 352,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,413.90 : 633,991.71 = 255,460.44 : x
  2. Step 2: Convert to fraction form
    459,413.90/633,991.71 = 255,460.44/x
  3. Step 3: Cross multiply
    459,413.90x = 633,991.71 × 255,460.44
  4. Step 4: Simplify right side
    459,413.90x = 161,959,800,205.88
  5. Step 5: Solve for x
    x = 161,959,800,205.88/459,413.90
  6. Step 6: Final answer
    x = 352,535.70

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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.