Home / 445,130.52-613,941.18-383,146.52

Finding the Fourth Proportional to 445,130.52, 613,941.18 and 383,146.52

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Solution

The fourth proportional to 445,130.52, 613,941.18 and 383,146.52 is: 528,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,130.52 : 613,941.18 = 383,146.52 : x
  2. Step 2: Convert to fraction form
    445,130.52/613,941.18 = 383,146.52/x
  3. Step 3: Cross multiply
    445,130.52x = 613,941.18 × 383,146.52
  4. Step 4: Simplify right side
    445,130.52x = 235,229,421,616.26
  5. Step 5: Solve for x
    x = 235,229,421,616.26/445,130.52
  6. Step 6: Final answer
    x = 528,450.45

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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.