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Finding the Fourth Proportional to 361,955.60, 542,058.60 and 346,209.20

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Solution

The fourth proportional to 361,955.60, 542,058.60 and 346,209.20 is: 518,477.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,955.60 : 542,058.60 = 346,209.20 : x
  2. Step 2: Convert to fraction form
    361,955.60/542,058.60 = 346,209.20/x
  3. Step 3: Cross multiply
    361,955.60x = 542,058.60 × 346,209.20
  4. Step 4: Simplify right side
    361,955.60x = 187,665,674,259.12
  5. Step 5: Solve for x
    x = 187,665,674,259.12/361,955.60
  6. Step 6: Final answer
    x = 518,477.06

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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.