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Finding the Fourth Proportional to 445,166.01, 613,990.16 and 383,182.04

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Solution

The fourth proportional to 445,166.01, 613,990.16 and 383,182.04 is: 528,499.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,166.01 : 613,990.16 = 383,182.04 : x
  2. Step 2: Convert to fraction form
    445,166.01/613,990.16 = 383,182.04/x
  3. Step 3: Cross multiply
    445,166.01x = 613,990.16 × 383,182.04
  4. Step 4: Simplify right side
    445,166.01x = 235,270,003,104.72
  5. Step 5: Solve for x
    x = 235,270,003,104.72/445,166.01
  6. Step 6: Final answer
    x = 528,499.48

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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.