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Finding the Fourth Proportional to 468,666.60, 702,999.90 and 309,234.30

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Solution

The fourth proportional to 468,666.60, 702,999.90 and 309,234.30 is: 463,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,666.60 : 702,999.90 = 309,234.30 : x
  2. Step 2: Convert to fraction form
    468,666.60/702,999.90 = 309,234.30/x
  3. Step 3: Cross multiply
    468,666.60x = 702,999.90 × 309,234.30
  4. Step 4: Simplify right side
    468,666.60x = 217,391,681,976.57
  5. Step 5: Solve for x
    x = 217,391,681,976.57/468,666.60
  6. Step 6: Final answer
    x = 463,851.45

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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.