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Finding the Fourth Proportional to 711,359.48, 981,616.47 and 401,244.93

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Solution

The fourth proportional to 711,359.48, 981,616.47 and 401,244.93 is: 553,684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,359.48 : 981,616.47 = 401,244.93 : x
  2. Step 2: Convert to fraction form
    711,359.48/981,616.47 = 401,244.93/x
  3. Step 3: Cross multiply
    711,359.48x = 981,616.47 × 401,244.93
  4. Step 4: Simplify right side
    711,359.48x = 393,868,628,334.84
  5. Step 5: Solve for x
    x = 393,868,628,334.84/711,359.48
  6. Step 6: Final answer
    x = 553,684.37

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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.