Home / 813,536.34-1,122,300.45-511,896.66

Finding the Fourth Proportional to 813,536.34, 1,122,300.45 and 511,896.66

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Solution

The fourth proportional to 813,536.34, 1,122,300.45 and 511,896.66 is: 706,178.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,536.34 : 1,122,300.45 = 511,896.66 : x
  2. Step 2: Convert to fraction form
    813,536.34/1,122,300.45 = 511,896.66/x
  3. Step 3: Cross multiply
    813,536.34x = 1,122,300.45 × 511,896.66
  4. Step 4: Simplify right side
    813,536.34x = 574,501,851,871.50
  5. Step 5: Solve for x
    x = 574,501,851,871.50/813,536.34
  6. Step 6: Final answer
    x = 706,178.47

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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.