Home / 685,385.52-1,028,307.92-236,416.29

Finding the Fourth Proportional to 685,385.52, 1,028,307.92 and 236,416.29

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Solution

The fourth proportional to 685,385.52, 1,028,307.92 and 236,416.29 is: 354,703.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,385.52 : 1,028,307.92 = 236,416.29 : x
  2. Step 2: Convert to fraction form
    685,385.52/1,028,307.92 = 236,416.29/x
  3. Step 3: Cross multiply
    685,385.52x = 1,028,307.92 × 236,416.29
  4. Step 4: Simplify right side
    685,385.52x = 243,108,742,241.94
  5. Step 5: Solve for x
    x = 243,108,742,241.94/685,385.52
  6. Step 6: Final answer
    x = 354,703.65

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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.