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Finding the Fourth Proportional to 411,040.60, 615,686.10 and 341,056.60

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Solution

The fourth proportional to 411,040.60, 615,686.10 and 341,056.60 is: 510,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,040.60 : 615,686.10 = 341,056.60 : x
  2. Step 2: Convert to fraction form
    411,040.60/615,686.10 = 341,056.60/x
  3. Step 3: Cross multiply
    411,040.60x = 615,686.10 × 341,056.60
  4. Step 4: Simplify right side
    411,040.60x = 209,983,807,933.26
  5. Step 5: Solve for x
    x = 209,983,807,933.26/411,040.60
  6. Step 6: Final answer
    x = 510,859.04

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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.