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Finding the Fourth Proportional to 472,900.47, 709,728.96 and 248,393.28

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Solution

The fourth proportional to 472,900.47, 709,728.96 and 248,393.28 is: 372,788.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,900.47 : 709,728.96 = 248,393.28 : x
  2. Step 2: Convert to fraction form
    472,900.47/709,728.96 = 248,393.28/x
  3. Step 3: Cross multiply
    472,900.47x = 709,728.96 × 248,393.28
  4. Step 4: Simplify right side
    472,900.47x = 176,291,904,285.39
  5. Step 5: Solve for x
    x = 176,291,904,285.39/472,900.47
  6. Step 6: Final answer
    x = 372,788.60

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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.