Home / 459,784.20-689,676.30-127,360.20

Finding the Fourth Proportional to 459,784.20, 689,676.30 and 127,360.20

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Solution

The fourth proportional to 459,784.20, 689,676.30 and 127,360.20 is: 191,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,784.20 : 689,676.30 = 127,360.20 : x
  2. Step 2: Convert to fraction form
    459,784.20/689,676.30 = 127,360.20/x
  3. Step 3: Cross multiply
    459,784.20x = 689,676.30 × 127,360.20
  4. Step 4: Simplify right side
    459,784.20x = 87,837,311,503.26
  5. Step 5: Solve for x
    x = 87,837,311,503.26/459,784.20
  6. Step 6: Final answer
    x = 191,040.30

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Similar ratio
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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.