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Finding the Fourth Proportional to 570,949.89, 856,956.20 and 290,676.93

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Solution

The fourth proportional to 570,949.89, 856,956.20 and 290,676.93 is: 436,285.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,949.89 : 856,956.20 = 290,676.93 : x
  2. Step 2: Convert to fraction form
    570,949.89/856,956.20 = 290,676.93/x
  3. Step 3: Cross multiply
    570,949.89x = 856,956.20 × 290,676.93
  4. Step 4: Simplify right side
    570,949.89x = 249,097,395,907.08
  5. Step 5: Solve for x
    x = 249,097,395,907.08/570,949.89
  6. Step 6: Final answer
    x = 436,285.92

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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.