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Finding the Fourth Proportional to 346,040.90, 518,077.20 and 346,040.90

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Solution

The fourth proportional to 346,040.90, 518,077.20 and 346,040.90 is: 518,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,040.90 : 518,077.20 = 346,040.90 : x
  2. Step 2: Convert to fraction form
    346,040.90/518,077.20 = 346,040.90/x
  3. Step 3: Cross multiply
    346,040.90x = 518,077.20 × 346,040.90
  4. Step 4: Simplify right side
    346,040.90x = 179,275,900,557.48
  5. Step 5: Solve for x
    x = 179,275,900,557.48/346,040.90
  6. Step 6: Final answer
    x = 518,077.20

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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.