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Finding the Fourth Proportional to 329,805.58, 455,133.38 and 186,562.54

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Solution

The fourth proportional to 329,805.58, 455,133.38 and 186,562.54 is: 257,457.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,805.58 : 455,133.38 = 186,562.54 : x
  2. Step 2: Convert to fraction form
    329,805.58/455,133.38 = 186,562.54/x
  3. Step 3: Cross multiply
    329,805.58x = 455,133.38 × 186,562.54
  4. Step 4: Simplify right side
    329,805.58x = 84,910,841,377.17
  5. Step 5: Solve for x
    x = 84,910,841,377.17/329,805.58
  6. Step 6: Final answer
    x = 257,457.26

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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.