Home / 450,415.02-621,581.79-249,214.38

Finding the Fourth Proportional to 450,415.02, 621,581.79 and 249,214.38

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Solution

The fourth proportional to 450,415.02, 621,581.79 and 249,214.38 is: 343,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,415.02 : 621,581.79 = 249,214.38 : x
  2. Step 2: Convert to fraction form
    450,415.02/621,581.79 = 249,214.38/x
  3. Step 3: Cross multiply
    450,415.02x = 621,581.79 × 249,214.38
  4. Step 4: Simplify right side
    450,415.02x = 154,907,120,414.14
  5. Step 5: Solve for x
    x = 154,907,120,414.14/450,415.02
  6. Step 6: Final answer
    x = 343,920.86

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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.