Home / 765,814.58-1,056,806.60-479,492.54

Finding the Fourth Proportional to 765,814.58, 1,056,806.60 and 479,492.54

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Solution

The fourth proportional to 765,814.58, 1,056,806.60 and 479,492.54 is: 661,688.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,814.58 : 1,056,806.60 = 479,492.54 : x
  2. Step 2: Convert to fraction form
    765,814.58/1,056,806.60 = 479,492.54/x
  3. Step 3: Cross multiply
    765,814.58x = 1,056,806.60 × 479,492.54
  4. Step 4: Simplify right side
    765,814.58x = 506,730,873,241.27
  5. Step 5: Solve for x
    x = 506,730,873,241.27/765,814.58
  6. Step 6: Final answer
    x = 661,688.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.