Home / 515,676.14-711,622.04-286,220.04

Finding the Fourth Proportional to 515,676.14, 711,622.04 and 286,220.04

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Solution

The fourth proportional to 515,676.14, 711,622.04 and 286,220.04 is: 394,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,676.14 : 711,622.04 = 286,220.04 : x
  2. Step 2: Convert to fraction form
    515,676.14/711,622.04 = 286,220.04/x
  3. Step 3: Cross multiply
    515,676.14x = 711,622.04 × 286,220.04
  4. Step 4: Simplify right side
    515,676.14x = 203,680,487,322.58
  5. Step 5: Solve for x
    x = 203,680,487,322.58/515,676.14
  6. Step 6: Final answer
    x = 394,977.53

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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.