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Finding the Fourth Proportional to 385,116.60, 577,674.90 and 385,116.60

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Solution

The fourth proportional to 385,116.60, 577,674.90 and 385,116.60 is: 577,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,116.60 : 577,674.90 = 385,116.60 : x
  2. Step 2: Convert to fraction form
    385,116.60/577,674.90 = 385,116.60/x
  3. Step 3: Cross multiply
    385,116.60x = 577,674.90 × 385,116.60
  4. Step 4: Simplify right side
    385,116.60x = 222,472,193,393.34
  5. Step 5: Solve for x
    x = 222,472,193,393.34/385,116.60
  6. Step 6: Final answer
    x = 577,674.90

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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.