Home / 516,119.18-712,226.19-289,774.22

Finding the Fourth Proportional to 516,119.18, 712,226.19 and 289,774.22

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Solution

The fourth proportional to 516,119.18, 712,226.19 and 289,774.22 is: 399,878.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,119.18 : 712,226.19 = 289,774.22 : x
  2. Step 2: Convert to fraction form
    516,119.18/712,226.19 = 289,774.22/x
  3. Step 3: Cross multiply
    516,119.18x = 712,226.19 × 289,774.22
  4. Step 4: Simplify right side
    516,119.18x = 206,384,788,670.82
  5. Step 5: Solve for x
    x = 206,384,788,670.82/516,119.18
  6. Step 6: Final answer
    x = 399,878.16

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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.