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Finding the Fourth Proportional to 633,459.16, 874,142.46 and 346,980.52

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Solution

The fourth proportional to 633,459.16, 874,142.46 and 346,980.52 is: 478,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,459.16 : 874,142.46 = 346,980.52 : x
  2. Step 2: Convert to fraction form
    633,459.16/874,142.46 = 346,980.52/x
  3. Step 3: Cross multiply
    633,459.16x = 874,142.46 × 346,980.52
  4. Step 4: Simplify right side
    633,459.16x = 303,310,405,324.88
  5. Step 5: Solve for x
    x = 303,310,405,324.88/633,459.16
  6. Step 6: Final answer
    x = 478,816.04

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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.