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Finding the Fourth Proportional to 316,907.88, 475,041.93 and 198,662.28

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Solution

The fourth proportional to 316,907.88, 475,041.93 and 198,662.28 is: 297,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,907.88 : 475,041.93 = 198,662.28 : x
  2. Step 2: Convert to fraction form
    316,907.88/475,041.93 = 198,662.28/x
  3. Step 3: Cross multiply
    316,907.88x = 475,041.93 × 198,662.28
  4. Step 4: Simplify right side
    316,907.88x = 94,372,912,909.40
  5. Step 5: Solve for x
    x = 94,372,912,909.40/316,907.88
  6. Step 6: Final answer
    x = 297,792.89

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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.