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Finding the Fourth Proportional to 543,678.20, 813,962.10 and 333,726.20

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Solution

The fourth proportional to 543,678.20, 813,962.10 and 333,726.20 is: 499,634.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,678.20 : 813,962.10 = 333,726.20 : x
  2. Step 2: Convert to fraction form
    543,678.20/813,962.10 = 333,726.20/x
  3. Step 3: Cross multiply
    543,678.20x = 813,962.10 × 333,726.20
  4. Step 4: Simplify right side
    543,678.20x = 271,640,478,577.02
  5. Step 5: Solve for x
    x = 271,640,478,577.02/543,678.20
  6. Step 6: Final answer
    x = 499,634.67

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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.