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Finding the Fourth Proportional to 472,987.20, 652,698.36 and 258,125.52

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Solution

The fourth proportional to 472,987.20, 652,698.36 and 258,125.52 is: 356,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,987.20 : 652,698.36 = 258,125.52 : x
  2. Step 2: Convert to fraction form
    472,987.20/652,698.36 = 258,125.52/x
  3. Step 3: Cross multiply
    472,987.20x = 652,698.36 × 258,125.52
  4. Step 4: Simplify right side
    472,987.20x = 168,478,103,578.15
  5. Step 5: Solve for x
    x = 168,478,103,578.15/472,987.20
  6. Step 6: Final answer
    x = 356,200.13

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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.