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Finding the Fourth Proportional to 570,999.16, 788,011.50 and 344,678.68

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Solution

The fourth proportional to 570,999.16, 788,011.50 and 344,678.68 is: 475,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,999.16 : 788,011.50 = 344,678.68 : x
  2. Step 2: Convert to fraction form
    570,999.16/788,011.50 = 344,678.68/x
  3. Step 3: Cross multiply
    570,999.16x = 788,011.50 × 344,678.68
  4. Step 4: Simplify right side
    570,999.16x = 271,610,763,644.82
  5. Step 5: Solve for x
    x = 271,610,763,644.82/570,999.16
  6. Step 6: Final answer
    x = 475,676.29

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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.