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Finding the Fourth Proportional to 607,953.81, 911,929.26 and 570,960.54

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Solution

The fourth proportional to 607,953.81, 911,929.26 and 570,960.54 is: 856,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,953.81 : 911,929.26 = 570,960.54 : x
  2. Step 2: Convert to fraction form
    607,953.81/911,929.26 = 570,960.54/x
  3. Step 3: Cross multiply
    607,953.81x = 911,929.26 × 570,960.54
  4. Step 4: Simplify right side
    607,953.81x = 520,675,622,731.40
  5. Step 5: Solve for x
    x = 520,675,622,731.40/607,953.81
  6. Step 6: Final answer
    x = 856,439.44

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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.