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Finding the Fourth Proportional to 383,319.66, 528,700.32 and 254,024.22

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Solution

The fourth proportional to 383,319.66, 528,700.32 and 254,024.22 is: 350,367.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,319.66 : 528,700.32 = 254,024.22 : x
  2. Step 2: Convert to fraction form
    383,319.66/528,700.32 = 254,024.22/x
  3. Step 3: Cross multiply
    383,319.66x = 528,700.32 × 254,024.22
  4. Step 4: Simplify right side
    383,319.66x = 134,302,686,401.75
  5. Step 5: Solve for x
    x = 134,302,686,401.75/383,319.66
  6. Step 6: Final answer
    x = 350,367.33

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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.