Home / 804,587.90-1,207,659.45-405,679.10

Finding the Fourth Proportional to 804,587.90, 1,207,659.45 and 405,679.10

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Solution

The fourth proportional to 804,587.90, 1,207,659.45 and 405,679.10 is: 608,910.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,587.90 : 1,207,659.45 = 405,679.10 : x
  2. Step 2: Convert to fraction form
    804,587.90/1,207,659.45 = 405,679.10/x
  3. Step 3: Cross multiply
    804,587.90x = 1,207,659.45 × 405,679.10
  4. Step 4: Simplify right side
    804,587.90x = 489,922,198,782.50
  5. Step 5: Solve for x
    x = 489,922,198,782.50/804,587.90
  6. Step 6: Final answer
    x = 608,910.72

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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.