Home / 495,436.18-683,679.06-280,577.80

Finding the Fourth Proportional to 495,436.18, 683,679.06 and 280,577.80

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Solution

The fourth proportional to 495,436.18, 683,679.06 and 280,577.80 is: 387,184.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,436.18 : 683,679.06 = 280,577.80 : x
  2. Step 2: Convert to fraction form
    495,436.18/683,679.06 = 280,577.80/x
  3. Step 3: Cross multiply
    495,436.18x = 683,679.06 × 280,577.80
  4. Step 4: Simplify right side
    495,436.18x = 191,825,166,560.87
  5. Step 5: Solve for x
    x = 191,825,166,560.87/495,436.18
  6. Step 6: Final answer
    x = 387,184.41

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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.