Home / 495,119.32-683,291.10-280,307.32

Finding the Fourth Proportional to 495,119.32, 683,291.10 and 280,307.32

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Solution

The fourth proportional to 495,119.32, 683,291.10 and 280,307.32 is: 386,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,119.32 : 683,291.10 = 280,307.32 : x
  2. Step 2: Convert to fraction form
    495,119.32/683,291.10 = 280,307.32/x
  3. Step 3: Cross multiply
    495,119.32x = 683,291.10 × 280,307.32
  4. Step 4: Simplify right side
    495,119.32x = 191,531,497,020.85
  5. Step 5: Solve for x
    x = 191,531,497,020.85/495,119.32
  6. Step 6: Final answer
    x = 386,839.07

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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.