Home / 516,447.15-712,714.38-287,014.11

Finding the Fourth Proportional to 516,447.15, 712,714.38 and 287,014.11

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Solution

The fourth proportional to 516,447.15, 712,714.38 and 287,014.11 is: 396,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,447.15 : 712,714.38 = 287,014.11 : x
  2. Step 2: Convert to fraction form
    516,447.15/712,714.38 = 287,014.11/x
  3. Step 3: Cross multiply
    516,447.15x = 712,714.38 × 287,014.11
  4. Step 4: Simplify right side
    516,447.15x = 204,559,083,459.90
  5. Step 5: Solve for x
    x = 204,559,083,459.90/516,447.15
  6. Step 6: Final answer
    x = 396,089.09

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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.