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Finding the Fourth Proportional to 482,814.30, 724,221.45 and 370,839.90

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Solution

The fourth proportional to 482,814.30, 724,221.45 and 370,839.90 is: 556,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,814.30 : 724,221.45 = 370,839.90 : x
  2. Step 2: Convert to fraction form
    482,814.30/724,221.45 = 370,839.90/x
  3. Step 3: Cross multiply
    482,814.30x = 724,221.45 × 370,839.90
  4. Step 4: Simplify right side
    482,814.30x = 268,570,210,095.86
  5. Step 5: Solve for x
    x = 268,570,210,095.86/482,814.30
  6. Step 6: Final answer
    x = 556,259.85

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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.