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Finding the Fourth Proportional to 329,837.88, 454,973.76 and 291,474.30

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Solution

The fourth proportional to 329,837.88, 454,973.76 and 291,474.30 is: 402,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,837.88 : 454,973.76 = 291,474.30 : x
  2. Step 2: Convert to fraction form
    329,837.88/454,973.76 = 291,474.30/x
  3. Step 3: Cross multiply
    329,837.88x = 454,973.76 × 291,474.30
  4. Step 4: Simplify right side
    329,837.88x = 132,613,158,214.37
  5. Step 5: Solve for x
    x = 132,613,158,214.37/329,837.88
  6. Step 6: Final answer
    x = 402,055.57

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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.