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Finding the Fourth Proportional to 620,871.48, 930,528.54 and 265,468.32

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Solution

The fourth proportional to 620,871.48, 930,528.54 and 265,468.32 is: 397,869.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,871.48 : 930,528.54 = 265,468.32 : x
  2. Step 2: Convert to fraction form
    620,871.48/930,528.54 = 265,468.32/x
  3. Step 3: Cross multiply
    620,871.48x = 930,528.54 × 265,468.32
  4. Step 4: Simplify right side
    620,871.48x = 247,025,848,225.85
  5. Step 5: Solve for x
    x = 247,025,848,225.85/620,871.48
  6. Step 6: Final answer
    x = 397,869.54

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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.