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Finding the Fourth Proportional to 572,492.57, 859,132.49 and 198,515.57

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Solution

The fourth proportional to 572,492.57, 859,132.49 and 198,515.57 is: 297,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,492.57 : 859,132.49 = 198,515.57 : x
  2. Step 2: Convert to fraction form
    572,492.57/859,132.49 = 198,515.57/x
  3. Step 3: Cross multiply
    572,492.57x = 859,132.49 × 198,515.57
  4. Step 4: Simplify right side
    572,492.57x = 170,551,177,113.12
  5. Step 5: Solve for x
    x = 170,551,177,113.12/572,492.57
  6. Step 6: Final answer
    x = 297,909.85

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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.