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Finding the Fourth Proportional to 516,383.36, 712,675.94 and 290,028.88

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Solution

The fourth proportional to 516,383.36, 712,675.94 and 290,028.88 is: 400,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,383.36 : 712,675.94 = 290,028.88 : x
  2. Step 2: Convert to fraction form
    516,383.36/712,675.94 = 290,028.88/x
  3. Step 3: Cross multiply
    516,383.36x = 712,675.94 × 290,028.88
  4. Step 4: Simplify right side
    516,383.36x = 206,696,604,681.15
  5. Step 5: Solve for x
    x = 206,696,604,681.15/516,383.36
  6. Step 6: Final answer
    x = 400,277.43

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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.