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Finding the Fourth Proportional to 926,879.40, 1,299,497.40 and 926,879.40

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Solution

The fourth proportional to 926,879.40, 1,299,497.40 and 926,879.40 is: 1,299,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,879.40 : 1,299,497.40 = 926,879.40 : x
  2. Step 2: Convert to fraction form
    926,879.40/1,299,497.40 = 926,879.40/x
  3. Step 3: Cross multiply
    926,879.40x = 1,299,497.40 × 926,879.40
  4. Step 4: Simplify right side
    926,879.40x = 1,204,477,370,413.56
  5. Step 5: Solve for x
    x = 1,204,477,370,413.56/926,879.40
  6. Step 6: Final answer
    x = 1,299,497.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.