Home / 380,582.30-570,939.11-127,887.05

Finding the Fourth Proportional to 380,582.30, 570,939.11 and 127,887.05

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Solution

The fourth proportional to 380,582.30, 570,939.11 and 127,887.05 is: 191,852.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,582.30 : 570,939.11 = 127,887.05 : x
  2. Step 2: Convert to fraction form
    380,582.30/570,939.11 = 127,887.05/x
  3. Step 3: Cross multiply
    380,582.30x = 570,939.11 × 127,887.05
  4. Step 4: Simplify right side
    380,582.30x = 73,015,715,013.39
  5. Step 5: Solve for x
    x = 73,015,715,013.39/380,582.30
  6. Step 6: Final answer
    x = 191,852.63

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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.