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Finding the Fourth Proportional to 575,059.28, 862,640.76 and 154,332.32

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Solution

The fourth proportional to 575,059.28, 862,640.76 and 154,332.32 is: 231,512.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,059.28 : 862,640.76 = 154,332.32 : x
  2. Step 2: Convert to fraction form
    575,059.28/862,640.76 = 154,332.32/x
  3. Step 3: Cross multiply
    575,059.28x = 862,640.76 × 154,332.32
  4. Step 4: Simplify right side
    575,059.28x = 133,133,349,817.36
  5. Step 5: Solve for x
    x = 133,133,349,817.36/575,059.28
  6. Step 6: Final answer
    x = 231,512.39

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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.