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Finding the Fourth Proportional to 383,665.32, 529,290.18 and 365,877.72

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Solution

The fourth proportional to 383,665.32, 529,290.18 and 365,877.72 is: 504,751.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,665.32 : 529,290.18 = 365,877.72 : x
  2. Step 2: Convert to fraction form
    383,665.32/529,290.18 = 365,877.72/x
  3. Step 3: Cross multiply
    383,665.32x = 529,290.18 × 365,877.72
  4. Step 4: Simplify right side
    383,665.32x = 193,655,484,276.79
  5. Step 5: Solve for x
    x = 193,655,484,276.79/383,665.32
  6. Step 6: Final answer
    x = 504,751.08

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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.