Home / 516,103.23-711,935.21-479,569.74

Finding the Fourth Proportional to 516,103.23, 711,935.21 and 479,569.74

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Solution

The fourth proportional to 516,103.23, 711,935.21 and 479,569.74 is: 661,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,103.23 : 711,935.21 = 479,569.74 : x
  2. Step 2: Convert to fraction form
    516,103.23/711,935.21 = 479,569.74/x
  3. Step 3: Cross multiply
    516,103.23x = 711,935.21 × 479,569.74
  4. Step 4: Simplify right side
    516,103.23x = 341,422,586,090.35
  5. Step 5: Solve for x
    x = 341,422,586,090.35/516,103.23
  6. Step 6: Final answer
    x = 661,539.33

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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.