Home / 804,555.90-1,207,611.45-405,647.10

Finding the Fourth Proportional to 804,555.90, 1,207,611.45 and 405,647.10

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Solution

The fourth proportional to 804,555.90, 1,207,611.45 and 405,647.10 is: 608,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,555.90 : 1,207,611.45 = 405,647.10 : x
  2. Step 2: Convert to fraction form
    804,555.90/1,207,611.45 = 405,647.10/x
  3. Step 3: Cross multiply
    804,555.90x = 1,207,611.45 × 405,647.10
  4. Step 4: Simplify right side
    804,555.90x = 489,864,082,619.30
  5. Step 5: Solve for x
    x = 489,864,082,619.30/804,555.90
  6. Step 6: Final answer
    x = 608,862.71

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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.