Home / 670,483.17-1,005,785.51-221,205.33

Finding the Fourth Proportional to 670,483.17, 1,005,785.51 and 221,205.33

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Solution

The fourth proportional to 670,483.17, 1,005,785.51 and 221,205.33 is: 331,828.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,483.17 : 1,005,785.51 = 221,205.33 : x
  2. Step 2: Convert to fraction form
    670,483.17/1,005,785.51 = 221,205.33/x
  3. Step 3: Cross multiply
    670,483.17x = 1,005,785.51 × 221,205.33
  4. Step 4: Simplify right side
    670,483.17x = 222,485,114,542.74
  5. Step 5: Solve for x
    x = 222,485,114,542.74/670,483.17
  6. Step 6: Final answer
    x = 331,828.04

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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.