Home / 665,928.14-998,581.65-345,994.00

Finding the Fourth Proportional to 665,928.14, 998,581.65 and 345,994.00

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Solution

The fourth proportional to 665,928.14, 998,581.65 and 345,994.00 is: 518,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,928.14 : 998,581.65 = 345,994.00 : x
  2. Step 2: Convert to fraction form
    665,928.14/998,581.65 = 345,994.00/x
  3. Step 3: Cross multiply
    665,928.14x = 998,581.65 × 345,994.00
  4. Step 4: Simplify right side
    665,928.14x = 345,503,256,913.65
  5. Step 5: Solve for x
    x = 345,503,256,913.65/665,928.14
  6. Step 6: Final answer
    x = 518,829.64

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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.