Home / 495,443.83-683,689.57-280,585.44

Finding the Fourth Proportional to 495,443.83, 683,689.57 and 280,585.44

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Solution

The fourth proportional to 495,443.83, 683,689.57 and 280,585.44 is: 387,194.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,443.83 : 683,689.57 = 280,585.44 : x
  2. Step 2: Convert to fraction form
    495,443.83/683,689.57 = 280,585.44/x
  3. Step 3: Cross multiply
    495,443.83x = 683,689.57 × 280,585.44
  4. Step 4: Simplify right side
    495,443.83x = 191,833,338,821.86
  5. Step 5: Solve for x
    x = 191,833,338,821.86/495,443.83
  6. Step 6: Final answer
    x = 387,194.93

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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.