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Finding the Fourth Proportional to 350,718.12, 526,072.32 and 328,303.80

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Solution

The fourth proportional to 350,718.12, 526,072.32 and 328,303.80 is: 492,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,718.12 : 526,072.32 = 328,303.80 : x
  2. Step 2: Convert to fraction form
    350,718.12/526,072.32 = 328,303.80/x
  3. Step 3: Cross multiply
    350,718.12x = 526,072.32 × 328,303.80
  4. Step 4: Simplify right side
    350,718.12x = 172,711,541,730.82
  5. Step 5: Solve for x
    x = 172,711,541,730.82/350,718.12
  6. Step 6: Final answer
    x = 492,451.15

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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.