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Finding the Fourth Proportional to 361,956.60, 542,060.10 and 346,210.20

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Solution

The fourth proportional to 361,956.60, 542,060.10 and 346,210.20 is: 518,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,956.60 : 542,060.10 = 346,210.20 : x
  2. Step 2: Convert to fraction form
    361,956.60/542,060.10 = 346,210.20/x
  3. Step 3: Cross multiply
    361,956.60x = 542,060.10 × 346,210.20
  4. Step 4: Simplify right side
    361,956.60x = 187,666,735,633.02
  5. Step 5: Solve for x
    x = 187,666,735,633.02/361,956.60
  6. Step 6: Final answer
    x = 518,478.56

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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.