Home / 516,443.39-712,709.20-287,010.36

Finding the Fourth Proportional to 516,443.39, 712,709.20 and 287,010.36

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Solution

The fourth proportional to 516,443.39, 712,709.20 and 287,010.36 is: 396,083.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,443.39 : 712,709.20 = 287,010.36 : x
  2. Step 2: Convert to fraction form
    516,443.39/712,709.20 = 287,010.36/x
  3. Step 3: Cross multiply
    516,443.39x = 712,709.20 × 287,010.36
  4. Step 4: Simplify right side
    516,443.39x = 204,554,927,237.79
  5. Step 5: Solve for x
    x = 204,554,927,237.79/516,443.39
  6. Step 6: Final answer
    x = 396,083.93

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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.