Home / 353,984.04-530,835.12-129,293.28

Finding the Fourth Proportional to 353,984.04, 530,835.12 and 129,293.28

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Solution

The fourth proportional to 353,984.04, 530,835.12 and 129,293.28 is: 193,888.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,984.04 : 530,835.12 = 129,293.28 : x
  2. Step 2: Convert to fraction form
    353,984.04/530,835.12 = 129,293.28/x
  3. Step 3: Cross multiply
    353,984.04x = 530,835.12 × 129,293.28
  4. Step 4: Simplify right side
    353,984.04x = 68,633,413,803.99
  5. Step 5: Solve for x
    x = 68,633,413,803.99/353,984.04
  6. Step 6: Final answer
    x = 193,888.44

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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.