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Finding the Fourth Proportional to 577,672.40, 866,508.60 and 519,611.60

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Solution

The fourth proportional to 577,672.40, 866,508.60 and 519,611.60 is: 779,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,672.40 : 866,508.60 = 519,611.60 : x
  2. Step 2: Convert to fraction form
    577,672.40/866,508.60 = 519,611.60/x
  3. Step 3: Cross multiply
    577,672.40x = 866,508.60 × 519,611.60
  4. Step 4: Simplify right side
    577,672.40x = 450,247,920,059.76
  5. Step 5: Solve for x
    x = 450,247,920,059.76/577,672.40
  6. Step 6: Final answer
    x = 779,417.40

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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.