Home / 641,337.12-885,033.57-354,857.22

Finding the Fourth Proportional to 641,337.12, 885,033.57 and 354,857.22

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Solution

The fourth proportional to 641,337.12, 885,033.57 and 354,857.22 is: 489,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,337.12 : 885,033.57 = 354,857.22 : x
  2. Step 2: Convert to fraction form
    641,337.12/885,033.57 = 354,857.22/x
  3. Step 3: Cross multiply
    641,337.12x = 885,033.57 × 354,857.22
  4. Step 4: Simplify right side
    641,337.12x = 314,060,552,256.88
  5. Step 5: Solve for x
    x = 314,060,552,256.88/641,337.12
  6. Step 6: Final answer
    x = 489,696.51

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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.