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Finding the Fourth Proportional to 611,468.26, 916,502.55 and 237,170.50

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Solution

The fourth proportional to 611,468.26, 916,502.55 and 237,170.50 is: 355,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,468.26 : 916,502.55 = 237,170.50 : x
  2. Step 2: Convert to fraction form
    611,468.26/916,502.55 = 237,170.50/x
  3. Step 3: Cross multiply
    611,468.26x = 916,502.55 × 237,170.50
  4. Step 4: Simplify right side
    611,468.26x = 217,367,368,034.78
  5. Step 5: Solve for x
    x = 217,367,368,034.78/611,468.26
  6. Step 6: Final answer
    x = 355,484.30

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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.