Home / 495,434.75-683,677.08-280,576.35

Finding the Fourth Proportional to 495,434.75, 683,677.08 and 280,576.35

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Solution

The fourth proportional to 495,434.75, 683,677.08 and 280,576.35 is: 387,182.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,434.75 : 683,677.08 = 280,576.35 : x
  2. Step 2: Convert to fraction form
    495,434.75/683,677.08 = 280,576.35/x
  3. Step 3: Cross multiply
    495,434.75x = 683,677.08 × 280,576.35
  4. Step 4: Simplify right side
    495,434.75x = 191,823,619,685.06
  5. Step 5: Solve for x
    x = 191,823,619,685.06/495,434.75
  6. Step 6: Final answer
    x = 387,182.41

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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.