Home / 724,347.83-1,086,542.30-191,868.91

Finding the Fourth Proportional to 724,347.83, 1,086,542.30 and 191,868.91

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Solution

The fourth proportional to 724,347.83, 1,086,542.30 and 191,868.91 is: 287,808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,347.83 : 1,086,542.30 = 191,868.91 : x
  2. Step 2: Convert to fraction form
    724,347.83/1,086,542.30 = 191,868.91/x
  3. Step 3: Cross multiply
    724,347.83x = 1,086,542.30 × 191,868.91
  4. Step 4: Simplify right side
    724,347.83x = 208,473,686,769.89
  5. Step 5: Solve for x
    x = 208,473,686,769.89/724,347.83
  6. Step 6: Final answer
    x = 287,808.81

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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.