Home / 495,170.89-683,341.32-280,306.24

Finding the Fourth Proportional to 495,170.89, 683,341.32 and 280,306.24

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Solution

The fourth proportional to 495,170.89, 683,341.32 and 280,306.24 is: 386,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,170.89 : 683,341.32 = 280,306.24 : x
  2. Step 2: Convert to fraction form
    495,170.89/683,341.32 = 280,306.24/x
  3. Step 3: Cross multiply
    495,170.89x = 683,341.32 × 280,306.24
  4. Step 4: Simplify right side
    495,170.89x = 191,544,836,045.84
  5. Step 5: Solve for x
    x = 191,544,836,045.84/495,170.89
  6. Step 6: Final answer
    x = 386,825.72

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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.