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Finding the Fourth Proportional to 638,194.32, 880,749.72 and 366,350.22

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Solution

The fourth proportional to 638,194.32, 880,749.72 and 366,350.22 is: 505,587.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,194.32 : 880,749.72 = 366,350.22 : x
  2. Step 2: Convert to fraction form
    638,194.32/880,749.72 = 366,350.22/x
  3. Step 3: Cross multiply
    638,194.32x = 880,749.72 × 366,350.22
  4. Step 4: Simplify right side
    638,194.32x = 322,662,853,686.94
  5. Step 5: Solve for x
    x = 322,662,853,686.94/638,194.32
  6. Step 6: Final answer
    x = 505,587.16

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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.