Home / 840,515.45-1,159,905.81-477,939.33

Finding the Fourth Proportional to 840,515.45, 1,159,905.81 and 477,939.33

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Solution

The fourth proportional to 840,515.45, 1,159,905.81 and 477,939.33 is: 659,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,515.45 : 1,159,905.81 = 477,939.33 : x
  2. Step 2: Convert to fraction form
    840,515.45/1,159,905.81 = 477,939.33/x
  3. Step 3: Cross multiply
    840,515.45x = 1,159,905.81 × 477,939.33
  4. Step 4: Simplify right side
    840,515.45x = 554,364,605,694.51
  5. Step 5: Solve for x
    x = 554,364,605,694.51/840,515.45
  6. Step 6: Final answer
    x = 659,553.15

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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.