Home / 407,983.07-611,974.49-127,500.32

Finding the Fourth Proportional to 407,983.07, 611,974.49 and 127,500.32

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Solution

The fourth proportional to 407,983.07, 611,974.49 and 127,500.32 is: 191,250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,983.07 : 611,974.49 = 127,500.32 : x
  2. Step 2: Convert to fraction form
    407,983.07/611,974.49 = 127,500.32/x
  3. Step 3: Cross multiply
    407,983.07x = 611,974.49 × 127,500.32
  4. Step 4: Simplify right side
    407,983.07x = 78,026,939,609.46
  5. Step 5: Solve for x
    x = 78,026,939,609.46/407,983.07
  6. Step 6: Final answer
    x = 191,250.44

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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.