Home / 383,013.45-528,784.89-340,448.94

Finding the Fourth Proportional to 383,013.45, 528,784.89 and 340,448.94

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Solution

The fourth proportional to 383,013.45, 528,784.89 and 340,448.94 is: 470,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,013.45 : 528,784.89 = 340,448.94 : x
  2. Step 2: Convert to fraction form
    383,013.45/528,784.89 = 340,448.94/x
  3. Step 3: Cross multiply
    383,013.45x = 528,784.89 × 340,448.94
  4. Step 4: Simplify right side
    383,013.45x = 180,024,255,288.52
  5. Step 5: Solve for x
    x = 180,024,255,288.52/383,013.45
  6. Step 6: Final answer
    x = 470,020.71

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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.