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Finding the Fourth Proportional to 549,325.50, 758,005.38 and 319,932.96

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Solution

The fourth proportional to 549,325.50, 758,005.38 and 319,932.96 is: 441,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,325.50 : 758,005.38 = 319,932.96 : x
  2. Step 2: Convert to fraction form
    549,325.50/758,005.38 = 319,932.96/x
  3. Step 3: Cross multiply
    549,325.50x = 758,005.38 × 319,932.96
  4. Step 4: Simplify right side
    549,325.50x = 242,510,904,919.33
  5. Step 5: Solve for x
    x = 242,510,904,919.33/549,325.50
  6. Step 6: Final answer
    x = 441,470.32

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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.