Home / 516,214.10-712,352.31-286,787.47

Finding the Fourth Proportional to 516,214.10, 712,352.31 and 286,787.47

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Solution

The fourth proportional to 516,214.10, 712,352.31 and 286,787.47 is: 395,753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,214.10 : 712,352.31 = 286,787.47 : x
  2. Step 2: Convert to fraction form
    516,214.10/712,352.31 = 286,787.47/x
  3. Step 3: Cross multiply
    516,214.10x = 712,352.31 × 286,787.47
  4. Step 4: Simplify right side
    516,214.10x = 204,293,716,733.56
  5. Step 5: Solve for x
    x = 204,293,716,733.56/516,214.10
  6. Step 6: Final answer
    x = 395,753.85

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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.