Home / 612,984.67-919,467.82-275,787.21

Finding the Fourth Proportional to 612,984.67, 919,467.82 and 275,787.21

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Solution

The fourth proportional to 612,984.67, 919,467.82 and 275,787.21 is: 413,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,984.67 : 919,467.82 = 275,787.21 : x
  2. Step 2: Convert to fraction form
    612,984.67/919,467.82 = 275,787.21/x
  3. Step 3: Cross multiply
    612,984.67x = 919,467.82 × 275,787.21
  4. Step 4: Simplify right side
    612,984.67x = 253,577,464,762.58
  5. Step 5: Solve for x
    x = 253,577,464,762.58/612,984.67
  6. Step 6: Final answer
    x = 413,676.68

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1.5x scale

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.