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Finding the Fourth Proportional to 529,939.47, 794,909.64 and 130,580.28

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Solution

The fourth proportional to 529,939.47, 794,909.64 and 130,580.28 is: 195,870.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,939.47 : 794,909.64 = 130,580.28 : x
  2. Step 2: Convert to fraction form
    529,939.47/794,909.64 = 130,580.28/x
  3. Step 3: Cross multiply
    529,939.47x = 794,909.64 × 130,580.28
  4. Step 4: Simplify right side
    529,939.47x = 103,799,523,365.90
  5. Step 5: Solve for x
    x = 103,799,523,365.90/529,939.47
  6. Step 6: Final answer
    x = 195,870.53

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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.