Home / 761,817.36-1,142,742.24-256,393.68

Finding the Fourth Proportional to 761,817.36, 1,142,742.24 and 256,393.68

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Solution

The fourth proportional to 761,817.36, 1,142,742.24 and 256,393.68 is: 384,595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,817.36 : 1,142,742.24 = 256,393.68 : x
  2. Step 2: Convert to fraction form
    761,817.36/1,142,742.24 = 256,393.68/x
  3. Step 3: Cross multiply
    761,817.36x = 1,142,742.24 × 256,393.68
  4. Step 4: Simplify right side
    761,817.36x = 292,991,888,205.04
  5. Step 5: Solve for x
    x = 292,991,888,205.04/761,817.36
  6. Step 6: Final answer
    x = 384,595.97

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Double scale
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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.