Home / 515,609.27-711,530.08-286,153.23

Finding the Fourth Proportional to 515,609.27, 711,530.08 and 286,153.23

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Solution

The fourth proportional to 515,609.27, 711,530.08 and 286,153.23 is: 394,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,609.27 : 711,530.08 = 286,153.23 : x
  2. Step 2: Convert to fraction form
    515,609.27/711,530.08 = 286,153.23/x
  3. Step 3: Cross multiply
    515,609.27x = 711,530.08 × 286,153.23
  4. Step 4: Simplify right side
    515,609.27x = 203,606,630,634.16
  5. Step 5: Solve for x
    x = 203,606,630,634.16/515,609.27
  6. Step 6: Final answer
    x = 394,885.51

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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.