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Finding the Fourth Proportional to 472,915.65, 652,564.85 and 300,853.41

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Solution

The fourth proportional to 472,915.65, 652,564.85 and 300,853.41 is: 415,140.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,915.65 : 652,564.85 = 300,853.41 : x
  2. Step 2: Convert to fraction form
    472,915.65/652,564.85 = 300,853.41/x
  3. Step 3: Cross multiply
    472,915.65x = 652,564.85 × 300,853.41
  4. Step 4: Simplify right side
    472,915.65x = 196,326,358,864.37
  5. Step 5: Solve for x
    x = 196,326,358,864.37/472,915.65
  6. Step 6: Final answer
    x = 415,140.33

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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.