Home / 821,861.88-1,133,435.02-515,966.76

Finding the Fourth Proportional to 821,861.88, 1,133,435.02 and 515,966.76

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Solution

The fourth proportional to 821,861.88, 1,133,435.02 and 515,966.76 is: 711,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,861.88 : 1,133,435.02 = 515,966.76 : x
  2. Step 2: Convert to fraction form
    821,861.88/1,133,435.02 = 515,966.76/x
  3. Step 3: Cross multiply
    821,861.88x = 1,133,435.02 × 515,966.76
  4. Step 4: Simplify right side
    821,861.88x = 584,814,794,254.68
  5. Step 5: Solve for x
    x = 584,814,794,254.68/821,861.88
  6. Step 6: Final answer
    x = 711,573.09

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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.