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Finding the Fourth Proportional to 361,953.60, 542,055.60 and 346,207.20

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Solution

The fourth proportional to 361,953.60, 542,055.60 and 346,207.20 is: 518,474.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,953.60 : 542,055.60 = 346,207.20 : x
  2. Step 2: Convert to fraction form
    361,953.60/542,055.60 = 346,207.20/x
  3. Step 3: Cross multiply
    361,953.60x = 542,055.60 × 346,207.20
  4. Step 4: Simplify right side
    361,953.60x = 187,663,551,520.32
  5. Step 5: Solve for x
    x = 187,663,551,520.32/361,953.60
  6. Step 6: Final answer
    x = 518,474.06

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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.