Home / 536,619.80-804,929.70-287,787.80

Finding the Fourth Proportional to 536,619.80, 804,929.70 and 287,787.80

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Solution

The fourth proportional to 536,619.80, 804,929.70 and 287,787.80 is: 431,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,619.80 : 804,929.70 = 287,787.80 : x
  2. Step 2: Convert to fraction form
    536,619.80/804,929.70 = 287,787.80/x
  3. Step 3: Cross multiply
    536,619.80x = 804,929.70 × 287,787.80
  4. Step 4: Simplify right side
    536,619.80x = 231,648,947,517.66
  5. Step 5: Solve for x
    x = 231,648,947,517.66/536,619.80
  6. Step 6: Final answer
    x = 431,681.70

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Similar ratio
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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.