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Finding the Fourth Proportional to 633,359.98, 874,094.66 and 346,921.30

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Solution

The fourth proportional to 633,359.98, 874,094.66 and 346,921.30 is: 478,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,359.98 : 874,094.66 = 346,921.30 : x
  2. Step 2: Convert to fraction form
    633,359.98/874,094.66 = 346,921.30/x
  3. Step 3: Cross multiply
    633,359.98x = 874,094.66 × 346,921.30
  4. Step 4: Simplify right side
    633,359.98x = 303,242,055,770.26
  5. Step 5: Solve for x
    x = 303,242,055,770.26/633,359.98
  6. Step 6: Final answer
    x = 478,783.10

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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.