Home / 480,795.12-721,172.63-125,801.28

Finding the Fourth Proportional to 480,795.12, 721,172.63 and 125,801.28

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Solution

The fourth proportional to 480,795.12, 721,172.63 and 125,801.28 is: 188,696.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,795.12 : 721,172.63 = 125,801.28 : x
  2. Step 2: Convert to fraction form
    480,795.12/721,172.63 = 125,801.28/x
  3. Step 3: Cross multiply
    480,795.12x = 721,172.63 × 125,801.28
  4. Step 4: Simplify right side
    480,795.12x = 90,724,439,954.97
  5. Step 5: Solve for x
    x = 90,724,439,954.97/480,795.12
  6. Step 6: Final answer
    x = 188,696.67

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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.