Home / 393,730.60-589,721.10-323,746.60

Finding the Fourth Proportional to 393,730.60, 589,721.10 and 323,746.60

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Solution

The fourth proportional to 393,730.60, 589,721.10 and 323,746.60 is: 484,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,730.60 : 589,721.10 = 323,746.60 : x
  2. Step 2: Convert to fraction form
    393,730.60/589,721.10 = 323,746.60/x
  3. Step 3: Cross multiply
    393,730.60x = 589,721.10 × 323,746.60
  4. Step 4: Simplify right side
    393,730.60x = 190,920,201,073.26
  5. Step 5: Solve for x
    x = 190,920,201,073.26/393,730.60
  6. Step 6: Final answer
    x = 484,900.59

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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.