Home / 638,150.40-880,588.80-366,163.20

Finding the Fourth Proportional to 638,150.40, 880,588.80 and 366,163.20

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Solution

The fourth proportional to 638,150.40, 880,588.80 and 366,163.20 is: 505,271.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,150.40 : 880,588.80 = 366,163.20 : x
  2. Step 2: Convert to fraction form
    638,150.40/880,588.80 = 366,163.20/x
  3. Step 3: Cross multiply
    638,150.40x = 880,588.80 × 366,163.20
  4. Step 4: Simplify right side
    638,150.40x = 322,439,212,892.16
  5. Step 5: Solve for x
    x = 322,439,212,892.16/638,150.40
  6. Step 6: Final answer
    x = 505,271.50

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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.