Home / 641,935.32-885,859.89-355,449.24

Finding the Fourth Proportional to 641,935.32, 885,859.89 and 355,449.24

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Solution

The fourth proportional to 641,935.32, 885,859.89 and 355,449.24 is: 490,513.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,935.32 : 885,859.89 = 355,449.24 : x
  2. Step 2: Convert to fraction form
    641,935.32/885,859.89 = 355,449.24/x
  3. Step 3: Cross multiply
    641,935.32x = 885,859.89 × 355,449.24
  4. Step 4: Simplify right side
    641,935.32x = 314,878,224,646.98
  5. Step 5: Solve for x
    x = 314,878,224,646.98/641,935.32
  6. Step 6: Final answer
    x = 490,513.94

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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.