Home / 639,341.38-882,289.30-352,859.41

Finding the Fourth Proportional to 639,341.38, 882,289.30 and 352,859.41

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Solution

The fourth proportional to 639,341.38, 882,289.30 and 352,859.41 is: 486,945.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,341.38 : 882,289.30 = 352,859.41 : x
  2. Step 2: Convert to fraction form
    639,341.38/882,289.30 = 352,859.41/x
  3. Step 3: Cross multiply
    639,341.38x = 882,289.30 × 352,859.41
  4. Step 4: Simplify right side
    639,341.38x = 311,324,084,714.87
  5. Step 5: Solve for x
    x = 311,324,084,714.87/639,341.38
  6. Step 6: Final answer
    x = 486,945.00

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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.