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Finding the Fourth Proportional to 329,115.90, 493,345.80 and 151,312.80

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Solution

The fourth proportional to 329,115.90, 493,345.80 and 151,312.80 is: 226,818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,115.90 : 493,345.80 = 151,312.80 : x
  2. Step 2: Convert to fraction form
    329,115.90/493,345.80 = 151,312.80/x
  3. Step 3: Cross multiply
    329,115.90x = 493,345.80 × 151,312.80
  4. Step 4: Simplify right side
    329,115.90x = 74,649,534,366.24
  5. Step 5: Solve for x
    x = 74,649,534,366.24/329,115.90
  6. Step 6: Final answer
    x = 226,818.38

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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.