Home / 678,180.60-1,016,396.10-519,623.10

Finding the Fourth Proportional to 678,180.60, 1,016,396.10 and 519,623.10

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Solution

The fourth proportional to 678,180.60, 1,016,396.10 and 519,623.10 is: 778,764.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,180.60 : 1,016,396.10 = 519,623.10 : x
  2. Step 2: Convert to fraction form
    678,180.60/1,016,396.10 = 519,623.10/x
  3. Step 3: Cross multiply
    678,180.60x = 1,016,396.10 × 519,623.10
  4. Step 4: Simplify right side
    678,180.60x = 528,142,892,309.91
  5. Step 5: Solve for x
    x = 528,142,892,309.91/678,180.60
  6. Step 6: Final answer
    x = 778,764.38

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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.