Home / 712,730.82-983,195.70-440,711.76

Finding the Fourth Proportional to 712,730.82, 983,195.70 and 440,711.76

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Solution

The fourth proportional to 712,730.82, 983,195.70 and 440,711.76 is: 607,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,730.82 : 983,195.70 = 440,711.76 : x
  2. Step 2: Convert to fraction form
    712,730.82/983,195.70 = 440,711.76/x
  3. Step 3: Cross multiply
    712,730.82x = 983,195.70 × 440,711.76
  4. Step 4: Simplify right side
    712,730.82x = 433,305,907,371.43
  5. Step 5: Solve for x
    x = 433,305,907,371.43/712,730.82
  6. Step 6: Final answer
    x = 607,951.69

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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.