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Finding the Fourth Proportional to 354,740.10, 532,110.15 and 313,268.10

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Solution

The fourth proportional to 354,740.10, 532,110.15 and 313,268.10 is: 469,902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,740.10 : 532,110.15 = 313,268.10 : x
  2. Step 2: Convert to fraction form
    354,740.10/532,110.15 = 313,268.10/x
  3. Step 3: Cross multiply
    354,740.10x = 532,110.15 × 313,268.10
  4. Step 4: Simplify right side
    354,740.10x = 166,693,135,681.22
  5. Step 5: Solve for x
    x = 166,693,135,681.22/354,740.10
  6. Step 6: Final answer
    x = 469,902.15

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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.