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Finding the Fourth Proportional to 436,672.61, 655,070.43 and 152,321.69

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Solution

The fourth proportional to 436,672.61, 655,070.43 and 152,321.69 is: 228,503.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,672.61 : 655,070.43 = 152,321.69 : x
  2. Step 2: Convert to fraction form
    436,672.61/655,070.43 = 152,321.69/x
  3. Step 3: Cross multiply
    436,672.61x = 655,070.43 × 152,321.69
  4. Step 4: Simplify right side
    436,672.61x = 99,781,434,966.63
  5. Step 5: Solve for x
    x = 99,781,434,966.63/436,672.61
  6. Step 6: Final answer
    x = 228,503.99

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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.