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Finding the Fourth Proportional to 543,308.50, 749,728.22 and 301,572.04

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Solution

The fourth proportional to 543,308.50, 749,728.22 and 301,572.04 is: 416,148.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,308.50 : 749,728.22 = 301,572.04 : x
  2. Step 2: Convert to fraction form
    543,308.50/749,728.22 = 301,572.04/x
  3. Step 3: Cross multiply
    543,308.50x = 749,728.22 × 301,572.04
  4. Step 4: Simplify right side
    543,308.50x = 226,097,068,750.97
  5. Step 5: Solve for x
    x = 226,097,068,750.97/543,308.50
  6. Step 6: Final answer
    x = 416,148.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.