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Finding the Fourth Proportional to 482,429.40, 724,421.70 and 364,234.20

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Solution

The fourth proportional to 482,429.40, 724,421.70 and 364,234.20 is: 546,938.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,429.40 : 724,421.70 = 364,234.20 : x
  2. Step 2: Convert to fraction form
    482,429.40/724,421.70 = 364,234.20/x
  3. Step 3: Cross multiply
    482,429.40x = 724,421.70 × 364,234.20
  4. Step 4: Simplify right side
    482,429.40x = 263,859,158,362.14
  5. Step 5: Solve for x
    x = 263,859,158,362.14/482,429.40
  6. Step 6: Final answer
    x = 546,938.39

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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.