Home / 445,126.05-613,935.01-383,142.03

Finding the Fourth Proportional to 445,126.05, 613,935.01 and 383,142.03

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Solution

The fourth proportional to 445,126.05, 613,935.01 and 383,142.03 is: 528,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,126.05 : 613,935.01 = 383,142.03 : x
  2. Step 2: Convert to fraction form
    445,126.05/613,935.01 = 383,142.03/x
  3. Step 3: Cross multiply
    445,126.05x = 613,935.01 × 383,142.03
  4. Step 4: Simplify right side
    445,126.05x = 235,224,302,949.80
  5. Step 5: Solve for x
    x = 235,224,302,949.80/445,126.05
  6. Step 6: Final answer
    x = 528,444.25

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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.