Home / 1,383,279.50-1,910,500.35-929,783.18

Finding the Fourth Proportional to 1,383,279.50, 1,910,500.35 and 929,783.18

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Solution

The fourth proportional to 1,383,279.50, 1,910,500.35 and 929,783.18 is: 1,284,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,279.50 : 1,910,500.35 = 929,783.18 : x
  2. Step 2: Convert to fraction form
    1,383,279.50/1,910,500.35 = 929,783.18/x
  3. Step 3: Cross multiply
    1,383,279.50x = 1,910,500.35 × 929,783.18
  4. Step 4: Simplify right side
    1,383,279.50x = 1,776,351,090,814.11
  5. Step 5: Solve for x
    x = 1,776,351,090,814.11/1,383,279.50
  6. Step 6: Final answer
    x = 1,284,159.20

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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.