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Finding the Fourth Proportional to 340,585.20, 511,108.20 and 190,825.20

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Solution

The fourth proportional to 340,585.20, 511,108.20 and 190,825.20 is: 286,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,585.20 : 511,108.20 = 190,825.20 : x
  2. Step 2: Convert to fraction form
    340,585.20/511,108.20 = 190,825.20/x
  3. Step 3: Cross multiply
    340,585.20x = 511,108.20 × 190,825.20
  4. Step 4: Simplify right side
    340,585.20x = 97,532,324,486.64
  5. Step 5: Solve for x
    x = 97,532,324,486.64/340,585.20
  6. Step 6: Final answer
    x = 286,366.89

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1.5x scale

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.