Home / 366,890.06-505,622.70-286,189.76

Finding the Fourth Proportional to 366,890.06, 505,622.70 and 286,189.76

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Solution

The fourth proportional to 366,890.06, 505,622.70 and 286,189.76 is: 394,407.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,890.06 : 505,622.70 = 286,189.76 : x
  2. Step 2: Convert to fraction form
    366,890.06/505,622.70 = 286,189.76/x
  3. Step 3: Cross multiply
    366,890.06x = 505,622.70 × 286,189.76
  4. Step 4: Simplify right side
    366,890.06x = 144,704,036,635.44
  5. Step 5: Solve for x
    x = 144,704,036,635.44/366,890.06
  6. Step 6: Final answer
    x = 394,407.08

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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.