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Finding the Fourth Proportional to 529,289.70, 793,934.55 and 520,073.70

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Solution

The fourth proportional to 529,289.70, 793,934.55 and 520,073.70 is: 780,110.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,289.70 : 793,934.55 = 520,073.70 : x
  2. Step 2: Convert to fraction form
    529,289.70/793,934.55 = 520,073.70/x
  3. Step 3: Cross multiply
    529,289.70x = 793,934.55 × 520,073.70
  4. Step 4: Simplify right side
    529,289.70x = 412,904,478,976.34
  5. Step 5: Solve for x
    x = 412,904,478,976.34/529,289.70
  6. Step 6: Final answer
    x = 780,110.55

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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.