Home / 638,235.60-880,518.24-366,205.20

Finding the Fourth Proportional to 638,235.60, 880,518.24 and 366,205.20

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Solution

The fourth proportional to 638,235.60, 880,518.24 and 366,205.20 is: 505,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,235.60 : 880,518.24 = 366,205.20 : x
  2. Step 2: Convert to fraction form
    638,235.60/880,518.24 = 366,205.20/x
  3. Step 3: Cross multiply
    638,235.60x = 880,518.24 × 366,205.20
  4. Step 4: Simplify right side
    638,235.60x = 322,450,358,182.85
  5. Step 5: Solve for x
    x = 322,450,358,182.85/638,235.60
  6. Step 6: Final answer
    x = 505,221.52

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Double scale
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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.