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Finding the Fourth Proportional to 1,246,385.82, 1,868,830.53 and 571,621.80

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Solution

The fourth proportional to 1,246,385.82, 1,868,830.53 and 571,621.80 is: 857,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,385.82 : 1,868,830.53 = 571,621.80 : x
  2. Step 2: Convert to fraction form
    1,246,385.82/1,868,830.53 = 571,621.80/x
  3. Step 3: Cross multiply
    1,246,385.82x = 1,868,830.53 × 571,621.80
  4. Step 4: Simplify right side
    1,246,385.82x = 1,068,264,271,453.55
  5. Step 5: Solve for x
    x = 1,068,264,271,453.55/1,246,385.82
  6. Step 6: Final answer
    x = 857,089.56

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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.