Home / 450,409.35-621,789.83-259,385.83

Finding the Fourth Proportional to 450,409.35, 621,789.83 and 259,385.83

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Solution

The fourth proportional to 450,409.35, 621,789.83 and 259,385.83 is: 358,081.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,409.35 : 621,789.83 = 259,385.83 : x
  2. Step 2: Convert to fraction form
    450,409.35/621,789.83 = 259,385.83/x
  3. Step 3: Cross multiply
    450,409.35x = 621,789.83 × 259,385.83
  4. Step 4: Simplify right side
    450,409.35x = 161,283,471,140.11
  5. Step 5: Solve for x
    x = 161,283,471,140.11/450,409.35
  6. Step 6: Final answer
    x = 358,081.98

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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.