Home / 865,504.56-1,298,242.80-333,141.28

Finding the Fourth Proportional to 865,504.56, 1,298,242.80 and 333,141.28

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Solution

The fourth proportional to 865,504.56, 1,298,242.80 and 333,141.28 is: 499,706.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,504.56 : 1,298,242.80 = 333,141.28 : x
  2. Step 2: Convert to fraction form
    865,504.56/1,298,242.80 = 333,141.28/x
  3. Step 3: Cross multiply
    865,504.56x = 1,298,242.80 × 333,141.28
  4. Step 4: Simplify right side
    865,504.56x = 432,498,268,142.78
  5. Step 5: Solve for x
    x = 432,498,268,142.78/865,504.56
  6. Step 6: Final answer
    x = 499,706.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.