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Finding the Fourth Proportional to 471,244.80, 705,700.80 and 302,505.60

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Solution

The fourth proportional to 471,244.80, 705,700.80 and 302,505.60 is: 453,009.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,244.80 : 705,700.80 = 302,505.60 : x
  2. Step 2: Convert to fraction form
    471,244.80/705,700.80 = 302,505.60/x
  3. Step 3: Cross multiply
    471,244.80x = 705,700.80 × 302,505.60
  4. Step 4: Simplify right side
    471,244.80x = 213,478,443,924.48
  5. Step 5: Solve for x
    x = 213,478,443,924.48/471,244.80
  6. Step 6: Final answer
    x = 453,009.65

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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.