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Finding the Fourth Proportional to 615,052.86, 848,772.15 and 346,780.86

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Solution

The fourth proportional to 615,052.86, 848,772.15 and 346,780.86 is: 478,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,052.86 : 848,772.15 = 346,780.86 : x
  2. Step 2: Convert to fraction form
    615,052.86/848,772.15 = 346,780.86/x
  3. Step 3: Cross multiply
    615,052.86x = 848,772.15 × 346,780.86
  4. Step 4: Simplify right side
    615,052.86x = 294,337,936,121.05
  5. Step 5: Solve for x
    x = 294,337,936,121.05/615,052.86
  6. Step 6: Final answer
    x = 478,557.14

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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.