Home / 711,393.08-981,753.92-409,684.28

Finding the Fourth Proportional to 711,393.08, 981,753.92 and 409,684.28

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Solution

The fourth proportional to 711,393.08, 981,753.92 and 409,684.28 is: 565,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,393.08 : 981,753.92 = 409,684.28 : x
  2. Step 2: Convert to fraction form
    711,393.08/981,753.92 = 409,684.28/x
  3. Step 3: Cross multiply
    711,393.08x = 981,753.92 × 409,684.28
  4. Step 4: Simplify right side
    711,393.08x = 402,209,147,852.38
  5. Step 5: Solve for x
    x = 402,209,147,852.38/711,393.08
  6. Step 6: Final answer
    x = 565,382.43

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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.