Home / 784,821.56-1,083,074.49-440,684.96

Finding the Fourth Proportional to 784,821.56, 1,083,074.49 and 440,684.96

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Solution

The fourth proportional to 784,821.56, 1,083,074.49 and 440,684.96 is: 608,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,821.56 : 1,083,074.49 = 440,684.96 : x
  2. Step 2: Convert to fraction form
    784,821.56/1,083,074.49 = 440,684.96/x
  3. Step 3: Cross multiply
    784,821.56x = 1,083,074.49 × 440,684.96
  4. Step 4: Simplify right side
    784,821.56x = 477,294,632,887.30
  5. Step 5: Solve for x
    x = 477,294,632,887.30/784,821.56
  6. Step 6: Final answer
    x = 608,156.89

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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.