Home / 828,709.40-1,243,064.10-695,739.80

Finding the Fourth Proportional to 828,709.40, 1,243,064.10 and 695,739.80

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Solution

The fourth proportional to 828,709.40, 1,243,064.10 and 695,739.80 is: 1,043,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,709.40 : 1,243,064.10 = 695,739.80 : x
  2. Step 2: Convert to fraction form
    828,709.40/1,243,064.10 = 695,739.80/x
  3. Step 3: Cross multiply
    828,709.40x = 1,243,064.10 × 695,739.80
  4. Step 4: Simplify right side
    828,709.40x = 864,849,168,321.18
  5. Step 5: Solve for x
    x = 864,849,168,321.18/828,709.40
  6. Step 6: Final answer
    x = 1,043,609.70

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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.