Home / 818,564.35-1,129,652.82-455,988.10

Finding the Fourth Proportional to 818,564.35, 1,129,652.82 and 455,988.10

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Solution

The fourth proportional to 818,564.35, 1,129,652.82 and 455,988.10 is: 629,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,564.35 : 1,129,652.82 = 455,988.10 : x
  2. Step 2: Convert to fraction form
    818,564.35/1,129,652.82 = 455,988.10/x
  3. Step 3: Cross multiply
    818,564.35x = 1,129,652.82 × 455,988.10
  4. Step 4: Simplify right side
    818,564.35x = 515,108,243,051.44
  5. Step 5: Solve for x
    x = 515,108,243,051.44/818,564.35
  6. Step 6: Final answer
    x = 629,282.53

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Double scale
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1.5x scale

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.