Home / 516,013.04-712,121.64-286,571.34

Finding the Fourth Proportional to 516,013.04, 712,121.64 and 286,571.34

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Solution

The fourth proportional to 516,013.04, 712,121.64 and 286,571.34 is: 395,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,013.04 : 712,121.64 = 286,571.34 : x
  2. Step 2: Convert to fraction form
    516,013.04/712,121.64 = 286,571.34/x
  3. Step 3: Cross multiply
    516,013.04x = 712,121.64 × 286,571.34
  4. Step 4: Simplify right side
    516,013.04x = 204,073,653,948.99
  5. Step 5: Solve for x
    x = 204,073,653,948.99/516,013.04
  6. Step 6: Final answer
    x = 395,481.58

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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.