Home / 712,559.34-983,087.76-406,414.56

Finding the Fourth Proportional to 712,559.34, 983,087.76 and 406,414.56

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Solution

The fourth proportional to 712,559.34, 983,087.76 and 406,414.56 is: 560,712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,559.34 : 983,087.76 = 406,414.56 : x
  2. Step 2: Convert to fraction form
    712,559.34/983,087.76 = 406,414.56/x
  3. Step 3: Cross multiply
    712,559.34x = 983,087.76 × 406,414.56
  4. Step 4: Simplify right side
    712,559.34x = 399,541,179,421.79
  5. Step 5: Solve for x
    x = 399,541,179,421.79/712,559.34
  6. Step 6: Final answer
    x = 560,712.85

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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.