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Finding the Fourth Proportional to 482,810.30, 724,211.85 and 145,850.30

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Solution

The fourth proportional to 482,810.30, 724,211.85 and 145,850.30 is: 218,774.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,810.30 : 724,211.85 = 145,850.30 : x
  2. Step 2: Convert to fraction form
    482,810.30/724,211.85 = 145,850.30/x
  3. Step 3: Cross multiply
    482,810.30x = 724,211.85 × 145,850.30
  4. Step 4: Simplify right side
    482,810.30x = 105,626,515,586.06
  5. Step 5: Solve for x
    x = 105,626,515,586.06/482,810.30
  6. Step 6: Final answer
    x = 218,774.36

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1.5x scale

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.