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Finding the Fourth Proportional to 711,509.49, 981,217.66 and 566,796.38

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Solution

The fourth proportional to 711,509.49, 981,217.66 and 566,796.38 is: 781,648.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,509.49 : 981,217.66 = 566,796.38 : x
  2. Step 2: Convert to fraction form
    711,509.49/981,217.66 = 566,796.38/x
  3. Step 3: Cross multiply
    711,509.49x = 981,217.66 × 566,796.38
  4. Step 4: Simplify right side
    711,509.49x = 556,150,617,680.07
  5. Step 5: Solve for x
    x = 556,150,617,680.07/711,509.49
  6. Step 6: Final answer
    x = 781,648.91

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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.