Home / 857,810.40-1,183,920.30-475,960.20

Finding the Fourth Proportional to 857,810.40, 1,183,920.30 and 475,960.20

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Solution

The fourth proportional to 857,810.40, 1,183,920.30 and 475,960.20 is: 656,903.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,810.40 : 1,183,920.30 = 475,960.20 : x
  2. Step 2: Convert to fraction form
    857,810.40/1,183,920.30 = 475,960.20/x
  3. Step 3: Cross multiply
    857,810.40x = 1,183,920.30 × 475,960.20
  4. Step 4: Simplify right side
    857,810.40x = 563,498,942,772.06
  5. Step 5: Solve for x
    x = 563,498,942,772.06/857,810.40
  6. Step 6: Final answer
    x = 656,903.84

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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.