Home / 449,383.60-620,146.04-245,434.61

Finding the Fourth Proportional to 449,383.60, 620,146.04 and 245,434.61

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Solution

The fourth proportional to 449,383.60, 620,146.04 and 245,434.61 is: 338,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,383.60 : 620,146.04 = 245,434.61 : x
  2. Step 2: Convert to fraction form
    449,383.60/620,146.04 = 245,434.61/x
  3. Step 3: Cross multiply
    449,383.60x = 620,146.04 × 245,434.61
  4. Step 4: Simplify right side
    449,383.60x = 152,205,303,634.40
  5. Step 5: Solve for x
    x = 152,205,303,634.40/449,383.60
  6. Step 6: Final answer
    x = 338,697.95

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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.