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Finding the Fourth Proportional to 325,641.01, 449,538.51 and 218,281.18

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Solution

The fourth proportional to 325,641.01, 449,538.51 and 218,281.18 is: 301,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,641.01 : 449,538.51 = 218,281.18 : x
  2. Step 2: Convert to fraction form
    325,641.01/449,538.51 = 218,281.18/x
  3. Step 3: Cross multiply
    325,641.01x = 449,538.51 × 218,281.18
  4. Step 4: Simplify right side
    325,641.01x = 98,125,796,418.24
  5. Step 5: Solve for x
    x = 98,125,796,418.24/325,641.01
  6. Step 6: Final answer
    x = 301,331.20

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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.