Home / 688,986.62-1,033,413.10-209,218.56

Finding the Fourth Proportional to 688,986.62, 1,033,413.10 and 209,218.56

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Solution

The fourth proportional to 688,986.62, 1,033,413.10 and 209,218.56 is: 313,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,986.62 : 1,033,413.10 = 209,218.56 : x
  2. Step 2: Convert to fraction form
    688,986.62/1,033,413.10 = 209,218.56/x
  3. Step 3: Cross multiply
    688,986.62x = 1,033,413.10 × 209,218.56
  4. Step 4: Simplify right side
    688,986.62x = 216,209,200,667.14
  5. Step 5: Solve for x
    x = 216,209,200,667.14/688,986.62
  6. Step 6: Final answer
    x = 313,807.55

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1.5x scale

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.