Home / 465,401.59-642,184.23-261,413.44

Finding the Fourth Proportional to 465,401.59, 642,184.23 and 261,413.44

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Solution

The fourth proportional to 465,401.59, 642,184.23 and 261,413.44 is: 360,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,401.59 : 642,184.23 = 261,413.44 : x
  2. Step 2: Convert to fraction form
    465,401.59/642,184.23 = 261,413.44/x
  3. Step 3: Cross multiply
    465,401.59x = 642,184.23 × 261,413.44
  4. Step 4: Simplify right side
    465,401.59x = 167,875,588,678.05
  5. Step 5: Solve for x
    x = 167,875,588,678.05/465,401.59
  6. Step 6: Final answer
    x = 360,711.25

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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.