Home / 638,800.31-958,865.07-470,510.66

Finding the Fourth Proportional to 638,800.31, 958,865.07 and 470,510.66

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Solution

The fourth proportional to 638,800.31, 958,865.07 and 470,510.66 is: 706,255.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,800.31 : 958,865.07 = 470,510.66 : x
  2. Step 2: Convert to fraction form
    638,800.31/958,865.07 = 470,510.66/x
  3. Step 3: Cross multiply
    638,800.31x = 958,865.07 × 470,510.66
  4. Step 4: Simplify right side
    638,800.31x = 451,156,236,936.65
  5. Step 5: Solve for x
    x = 451,156,236,936.65/638,800.31
  6. Step 6: Final answer
    x = 706,255.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.