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Finding the Fourth Proportional to 482,992.90, 724,489.35 and 383,460.10

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Solution

The fourth proportional to 482,992.90, 724,489.35 and 383,460.10 is: 575,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,992.90 : 724,489.35 = 383,460.10 : x
  2. Step 2: Convert to fraction form
    482,992.90/724,489.35 = 383,460.10/x
  3. Step 3: Cross multiply
    482,992.90x = 724,489.35 × 383,460.10
  4. Step 4: Simplify right side
    482,992.90x = 277,812,758,599.94
  5. Step 5: Solve for x
    x = 277,812,758,599.94/482,992.90
  6. Step 6: Final answer
    x = 575,190.15

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Double scale
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Similar ratio
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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.