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Finding the Fourth Proportional to 556,818.47, 768,012.51 and 511,025.73

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Solution

The fourth proportional to 556,818.47, 768,012.51 and 511,025.73 is: 704,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,818.47 : 768,012.51 = 511,025.73 : x
  2. Step 2: Convert to fraction form
    556,818.47/768,012.51 = 511,025.73/x
  3. Step 3: Cross multiply
    556,818.47x = 768,012.51 × 511,025.73
  4. Step 4: Simplify right side
    556,818.47x = 392,474,152,608.18
  5. Step 5: Solve for x
    x = 392,474,152,608.18/556,818.47
  6. Step 6: Final answer
    x = 704,851.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.