Home / 325,815.10-488,722.65-314,928.70

Finding the Fourth Proportional to 325,815.10, 488,722.65 and 314,928.70

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Solution

The fourth proportional to 325,815.10, 488,722.65 and 314,928.70 is: 472,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,815.10 : 488,722.65 = 314,928.70 : x
  2. Step 2: Convert to fraction form
    325,815.10/488,722.65 = 314,928.70/x
  3. Step 3: Cross multiply
    325,815.10x = 488,722.65 × 314,928.70
  4. Step 4: Simplify right side
    325,815.10x = 153,912,788,825.06
  5. Step 5: Solve for x
    x = 153,912,788,825.06/325,815.10
  6. Step 6: Final answer
    x = 472,393.05

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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.