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Finding the Fourth Proportional to 633,362.70, 874,008.05 and 346,876.64

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Solution

The fourth proportional to 633,362.70, 874,008.05 and 346,876.64 is: 478,671.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,362.70 : 874,008.05 = 346,876.64 : x
  2. Step 2: Convert to fraction form
    633,362.70/874,008.05 = 346,876.64/x
  3. Step 3: Cross multiply
    633,362.70x = 874,008.05 × 346,876.64
  4. Step 4: Simplify right side
    633,362.70x = 303,172,975,716.95
  5. Step 5: Solve for x
    x = 303,172,975,716.95/633,362.70
  6. Step 6: Final answer
    x = 478,671.98

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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.