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Finding the Fourth Proportional to 467,643.65, 645,522.69 and 364,072.62

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Solution

The fourth proportional to 467,643.65, 645,522.69 and 364,072.62 is: 502,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,643.65 : 645,522.69 = 364,072.62 : x
  2. Step 2: Convert to fraction form
    467,643.65/645,522.69 = 364,072.62/x
  3. Step 3: Cross multiply
    467,643.65x = 645,522.69 × 364,072.62
  4. Step 4: Simplify right side
    467,643.65x = 235,017,140,931.72
  5. Step 5: Solve for x
    x = 235,017,140,931.72/467,643.65
  6. Step 6: Final answer
    x = 502,556.04

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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.