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Finding the Fourth Proportional to 549,144.01, 757,909.41 and 376,920.49

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Solution

The fourth proportional to 549,144.01, 757,909.41 and 376,920.49 is: 520,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,144.01 : 757,909.41 = 376,920.49 : x
  2. Step 2: Convert to fraction form
    549,144.01/757,909.41 = 376,920.49/x
  3. Step 3: Cross multiply
    549,144.01x = 757,909.41 × 376,920.49
  4. Step 4: Simplify right side
    549,144.01x = 285,671,586,192.81
  5. Step 5: Solve for x
    x = 285,671,586,192.81/549,144.01
  6. Step 6: Final answer
    x = 520,212.51

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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.