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Finding the Fourth Proportional to 570,875.49, 856,310.79 and 144,415.35

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Solution

The fourth proportional to 570,875.49, 856,310.79 and 144,415.35 is: 216,622.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,875.49 : 856,310.79 = 144,415.35 : x
  2. Step 2: Convert to fraction form
    570,875.49/856,310.79 = 144,415.35/x
  3. Step 3: Cross multiply
    570,875.49x = 856,310.79 × 144,415.35
  4. Step 4: Simplify right side
    570,875.49x = 123,664,422,446.63
  5. Step 5: Solve for x
    x = 123,664,422,446.63/570,875.49
  6. Step 6: Final answer
    x = 216,622.41

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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.