Home / 459,835.38-689,753.34-127,411.38

Finding the Fourth Proportional to 459,835.38, 689,753.34 and 127,411.38

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Solution

The fourth proportional to 459,835.38, 689,753.34 and 127,411.38 is: 191,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,835.38 : 689,753.34 = 127,411.38 : x
  2. Step 2: Convert to fraction form
    459,835.38/689,753.34 = 127,411.38/x
  3. Step 3: Cross multiply
    459,835.38x = 689,753.34 × 127,411.38
  4. Step 4: Simplify right side
    459,835.38x = 87,882,424,909.01
  5. Step 5: Solve for x
    x = 87,882,424,909.01/459,835.38
  6. Step 6: Final answer
    x = 191,117.14

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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.