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Finding the Fourth Proportional to 482,844.90, 724,396.95 and 430,616.10

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Solution

The fourth proportional to 482,844.90, 724,396.95 and 430,616.10 is: 646,039.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,844.90 : 724,396.95 = 430,616.10 : x
  2. Step 2: Convert to fraction form
    482,844.90/724,396.95 = 430,616.10/x
  3. Step 3: Cross multiply
    482,844.90x = 724,396.95 × 430,616.10
  4. Step 4: Simplify right side
    482,844.90x = 311,936,989,460.90
  5. Step 5: Solve for x
    x = 311,936,989,460.90/482,844.90
  6. Step 6: Final answer
    x = 646,039.73

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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.