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Finding the Fourth Proportional to 516,561.99, 712,850.20 and 295,769.98

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Solution

The fourth proportional to 516,561.99, 712,850.20 and 295,769.98 is: 408,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,561.99 : 712,850.20 = 295,769.98 : x
  2. Step 2: Convert to fraction form
    516,561.99/712,850.20 = 295,769.98/x
  3. Step 3: Cross multiply
    516,561.99x = 712,850.20 × 295,769.98
  4. Step 4: Simplify right side
    516,561.99x = 210,839,689,397.00
  5. Step 5: Solve for x
    x = 210,839,689,397.00/516,561.99
  6. Step 6: Final answer
    x = 408,159.51

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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.