Home / 631,324.94-870,950.99-386,321.36

Finding the Fourth Proportional to 631,324.94, 870,950.99 and 386,321.36

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Solution

The fourth proportional to 631,324.94, 870,950.99 and 386,321.36 is: 532,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,324.94 : 870,950.99 = 386,321.36 : x
  2. Step 2: Convert to fraction form
    631,324.94/870,950.99 = 386,321.36/x
  3. Step 3: Cross multiply
    631,324.94x = 870,950.99 × 386,321.36
  4. Step 4: Simplify right side
    631,324.94x = 336,466,974,228.33
  5. Step 5: Solve for x
    x = 336,466,974,228.33/631,324.94
  6. Step 6: Final answer
    x = 532,953.72

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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.