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Finding the Fourth Proportional to 570,938.50, 856,374.80 and 171,570.70

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Solution

The fourth proportional to 570,938.50, 856,374.80 and 171,570.70 is: 257,346.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,938.50 : 856,374.80 = 171,570.70 : x
  2. Step 2: Convert to fraction form
    570,938.50/856,374.80 = 171,570.70/x
  3. Step 3: Cross multiply
    570,938.50x = 856,374.80 × 171,570.70
  4. Step 4: Simplify right side
    570,938.50x = 146,928,823,898.36
  5. Step 5: Solve for x
    x = 146,928,823,898.36/570,938.50
  6. Step 6: Final answer
    x = 257,346.15

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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.