Home / 417,682,217.72-623,457,382.24-386,901,155

Finding the Fourth Proportional to 417,682,217.72, 623,457,382.24 and 386,901,155

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Solution

The fourth proportional to 417,682,217.72, 623,457,382.24 and 386,901,155 is: 577,511,732.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,682,217.72 : 623,457,382.24 = 386,901,155 : x
  2. Step 2: Convert to fraction form
    417,682,217.72/623,457,382.24 = 386,901,155/x
  3. Step 3: Cross multiply
    417,682,217.72x = 623,457,382.24 × 386,901,155
  4. Step 4: Simplify right side
    417,682,217.72x = 241,216,381,281,932,480
  5. Step 5: Solve for x
    x = 241,216,381,281,932,480/417,682,217.72
  6. Step 6: Final answer
    x = 577,511,732.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.