Home / 495,436.25-683,679.15-280,577.85

Finding the Fourth Proportional to 495,436.25, 683,679.15 and 280,577.85

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Solution

The fourth proportional to 495,436.25, 683,679.15 and 280,577.85 is: 387,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,436.25 : 683,679.15 = 280,577.85 : x
  2. Step 2: Convert to fraction form
    495,436.25/683,679.15 = 280,577.85/x
  3. Step 3: Cross multiply
    495,436.25x = 683,679.15 × 280,577.85
  4. Step 4: Simplify right side
    495,436.25x = 191,825,225,996.83
  5. Step 5: Solve for x
    x = 191,825,225,996.83/495,436.25
  6. Step 6: Final answer
    x = 387,184.48

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1.5x scale

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.