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Finding the Fourth Proportional to 528,986.32, 730,269.98 and 335,591.58

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Solution

The fourth proportional to 528,986.32, 730,269.98 and 335,591.58 is: 463,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,986.32 : 730,269.98 = 335,591.58 : x
  2. Step 2: Convert to fraction form
    528,986.32/730,269.98 = 335,591.58/x
  3. Step 3: Cross multiply
    528,986.32x = 730,269.98 × 335,591.58
  4. Step 4: Simplify right side
    528,986.32x = 245,072,456,679.91
  5. Step 5: Solve for x
    x = 245,072,456,679.91/528,986.32
  6. Step 6: Final answer
    x = 463,286.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.