Home / 450,156.69-621,147.15-259,133.04

Finding the Fourth Proportional to 450,156.69, 621,147.15 and 259,133.04

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Solution

The fourth proportional to 450,156.69, 621,147.15 and 259,133.04 is: 357,563.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,156.69 : 621,147.15 = 259,133.04 : x
  2. Step 2: Convert to fraction form
    450,156.69/621,147.15 = 259,133.04/x
  3. Step 3: Cross multiply
    450,156.69x = 621,147.15 × 259,133.04
  4. Step 4: Simplify right side
    450,156.69x = 160,959,749,266.84
  5. Step 5: Solve for x
    x = 160,959,749,266.84/450,156.69
  6. Step 6: Final answer
    x = 357,563.83

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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.