Home / 859,193.03-1,289,321.75-499,533.13

Finding the Fourth Proportional to 859,193.03, 1,289,321.75 and 499,533.13

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Solution

The fourth proportional to 859,193.03, 1,289,321.75 and 499,533.13 is: 749,609.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,193.03 : 1,289,321.75 = 499,533.13 : x
  2. Step 2: Convert to fraction form
    859,193.03/1,289,321.75 = 499,533.13/x
  3. Step 3: Cross multiply
    859,193.03x = 1,289,321.75 × 499,533.13
  4. Step 4: Simplify right side
    859,193.03x = 644,058,929,354.58
  5. Step 5: Solve for x
    x = 644,058,929,354.58/859,193.03
  6. Step 6: Final answer
    x = 749,609.12

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Double scale
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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.