Home / 1,386,099.75-2,076,201.72-665,379

Finding the Fourth Proportional to 1,386,099.75, 2,076,201.72 and 665,379

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Solution

The fourth proportional to 1,386,099.75, 2,076,201.72 and 665,379 is: 996,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,099.75 : 2,076,201.72 = 665,379 : x
  2. Step 2: Convert to fraction form
    1,386,099.75/2,076,201.72 = 665,379/x
  3. Step 3: Cross multiply
    1,386,099.75x = 2,076,201.72 × 665,379
  4. Step 4: Simplify right side
    1,386,099.75x = 1,381,461,024,251.88
  5. Step 5: Solve for x
    x = 1,381,461,024,251.88/1,386,099.75
  6. Step 6: Final answer
    x = 996,653.40

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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.