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Finding the Fourth Proportional to 1,024.61, 1,537.53 and 537.80

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Solution

The fourth proportional to 1,024.61, 1,537.53 and 537.80 is: 807.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.61 : 1,537.53 = 537.80 : x
  2. Step 2: Convert to fraction form
    1,024.61/1,537.53 = 537.80/x
  3. Step 3: Cross multiply
    1,024.61x = 1,537.53 × 537.80
  4. Step 4: Simplify right side
    1,024.61x = 826,880.95
  5. Step 5: Solve for x
    x = 826,880.95/1,024.61
  6. Step 6: Final answer
    x = 807.02

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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.