Home / 724,394.70-1,086,543.45-191,904.30

Finding the Fourth Proportional to 724,394.70, 1,086,543.45 and 191,904.30

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Solution

The fourth proportional to 724,394.70, 1,086,543.45 and 191,904.30 is: 287,843.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,394.70 : 1,086,543.45 = 191,904.30 : x
  2. Step 2: Convert to fraction form
    724,394.70/1,086,543.45 = 191,904.30/x
  3. Step 3: Cross multiply
    724,394.70x = 1,086,543.45 × 191,904.30
  4. Step 4: Simplify right side
    724,394.70x = 208,512,360,191.84
  5. Step 5: Solve for x
    x = 208,512,360,191.84/724,394.70
  6. Step 6: Final answer
    x = 287,843.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.