Home / 678,605.30-1,017,907.95-179,969.30

Finding the Fourth Proportional to 678,605.30, 1,017,907.95 and 179,969.30

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Solution

The fourth proportional to 678,605.30, 1,017,907.95 and 179,969.30 is: 269,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,605.30 : 1,017,907.95 = 179,969.30 : x
  2. Step 2: Convert to fraction form
    678,605.30/1,017,907.95 = 179,969.30/x
  3. Step 3: Cross multiply
    678,605.30x = 1,017,907.95 × 179,969.30
  4. Step 4: Simplify right side
    678,605.30x = 183,192,181,225.94
  5. Step 5: Solve for x
    x = 183,192,181,225.94/678,605.30
  6. Step 6: Final answer
    x = 269,953.95

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Double scale
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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.