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Finding the Fourth Proportional to 346,080.30, 517,968.45 and 251,040.30

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Solution

The fourth proportional to 346,080.30, 517,968.45 and 251,040.30 is: 375,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,080.30 : 517,968.45 = 251,040.30 : x
  2. Step 2: Convert to fraction form
    346,080.30/517,968.45 = 251,040.30/x
  3. Step 3: Cross multiply
    346,080.30x = 517,968.45 × 251,040.30
  4. Step 4: Simplify right side
    346,080.30x = 130,030,955,078.54
  5. Step 5: Solve for x
    x = 130,030,955,078.54/346,080.30
  6. Step 6: Final answer
    x = 375,724.81

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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.