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Finding the Fourth Proportional to 529,617.60, 794,426.40 and 305,668.80

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Solution

The fourth proportional to 529,617.60, 794,426.40 and 305,668.80 is: 458,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,617.60 : 794,426.40 = 305,668.80 : x
  2. Step 2: Convert to fraction form
    529,617.60/794,426.40 = 305,668.80/x
  3. Step 3: Cross multiply
    529,617.60x = 794,426.40 × 305,668.80
  4. Step 4: Simplify right side
    529,617.60x = 242,831,364,376.32
  5. Step 5: Solve for x
    x = 242,831,364,376.32/529,617.60
  6. Step 6: Final answer
    x = 458,503.20

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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.