Home / 818,803.23-1,129,916.28-456,217.77

Finding the Fourth Proportional to 818,803.23, 1,129,916.28 and 456,217.77

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Solution

The fourth proportional to 818,803.23, 1,129,916.28 and 456,217.77 is: 629,562.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,803.23 : 1,129,916.28 = 456,217.77 : x
  2. Step 2: Convert to fraction form
    818,803.23/1,129,916.28 = 456,217.77/x
  3. Step 3: Cross multiply
    818,803.23x = 1,129,916.28 × 456,217.77
  4. Step 4: Simplify right side
    818,803.23x = 515,487,885,140.52
  5. Step 5: Solve for x
    x = 515,487,885,140.52/818,803.23
  6. Step 6: Final answer
    x = 629,562.59

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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.