Home / 638,236.10-880,518.93-366,205.70

Finding the Fourth Proportional to 638,236.10, 880,518.93 and 366,205.70

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Solution

The fourth proportional to 638,236.10, 880,518.93 and 366,205.70 is: 505,222.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,236.10 : 880,518.93 = 366,205.70 : x
  2. Step 2: Convert to fraction form
    638,236.10/880,518.93 = 366,205.70/x
  3. Step 3: Cross multiply
    638,236.10x = 880,518.93 × 366,205.70
  4. Step 4: Simplify right side
    638,236.10x = 322,451,051,123.90
  5. Step 5: Solve for x
    x = 322,451,051,123.90/638,236.10
  6. Step 6: Final answer
    x = 505,222.21

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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.