Home / 859,561.35-1,287,570.11-503,495.88

Finding the Fourth Proportional to 859,561.35, 1,287,570.11 and 503,495.88

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Solution

The fourth proportional to 859,561.35, 1,287,570.11 and 503,495.88 is: 754,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,561.35 : 1,287,570.11 = 503,495.88 : x
  2. Step 2: Convert to fraction form
    859,561.35/1,287,570.11 = 503,495.88/x
  3. Step 3: Cross multiply
    859,561.35x = 1,287,570.11 × 503,495.88
  4. Step 4: Simplify right side
    859,561.35x = 648,286,243,078.67
  5. Step 5: Solve for x
    x = 648,286,243,078.67/859,561.35
  6. Step 6: Final answer
    x = 754,205.90

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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.