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Finding the Fourth Proportional to 556,230.80, 834,564.90 and 219,214.10

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Solution

The fourth proportional to 556,230.80, 834,564.90 and 219,214.10 is: 328,907.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,230.80 : 834,564.90 = 219,214.10 : x
  2. Step 2: Convert to fraction form
    556,230.80/834,564.90 = 219,214.10/x
  3. Step 3: Cross multiply
    556,230.80x = 834,564.90 × 219,214.10
  4. Step 4: Simplify right side
    556,230.80x = 182,948,393,445.09
  5. Step 5: Solve for x
    x = 182,948,393,445.09/556,230.80
  6. Step 6: Final answer
    x = 328,907.34

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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.