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Finding the Fourth Proportional to 355,626.60, 532,403.10 and 345,258.60

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Solution

The fourth proportional to 355,626.60, 532,403.10 and 345,258.60 is: 516,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,626.60 : 532,403.10 = 345,258.60 : x
  2. Step 2: Convert to fraction form
    355,626.60/532,403.10 = 345,258.60/x
  3. Step 3: Cross multiply
    355,626.60x = 532,403.10 × 345,258.60
  4. Step 4: Simplify right side
    355,626.60x = 183,816,748,941.66
  5. Step 5: Solve for x
    x = 183,816,748,941.66/355,626.60
  6. Step 6: Final answer
    x = 516,881.33

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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.