Home / 638,053.20-880,501.32-351,599.76

Finding the Fourth Proportional to 638,053.20, 880,501.32 and 351,599.76

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Solution

The fourth proportional to 638,053.20, 880,501.32 and 351,599.76 is: 485,201.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,053.20 : 880,501.32 = 351,599.76 : x
  2. Step 2: Convert to fraction form
    638,053.20/880,501.32 = 351,599.76/x
  3. Step 3: Cross multiply
    638,053.20x = 880,501.32 × 351,599.76
  4. Step 4: Simplify right side
    638,053.20x = 309,584,052,791.68
  5. Step 5: Solve for x
    x = 309,584,052,791.68/638,053.20
  6. Step 6: Final answer
    x = 485,201.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.