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Finding the Fourth Proportional to 570,935, 856,369.56 and 171,567.20

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Solution

The fourth proportional to 570,935, 856,369.56 and 171,567.20 is: 257,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,935 : 856,369.56 = 171,567.20 : x
  2. Step 2: Convert to fraction form
    570,935/856,369.56 = 171,567.20/x
  3. Step 3: Cross multiply
    570,935x = 856,369.56 × 171,567.20
  4. Step 4: Simplify right side
    570,935x = 146,924,927,574.43
  5. Step 5: Solve for x
    x = 146,924,927,574.43/570,935
  6. Step 6: Final answer
    x = 257,340.90

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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.