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Finding the Fourth Proportional to 549,672.04, 758,496.42 and 311,208.04

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Solution

The fourth proportional to 549,672.04, 758,496.42 and 311,208.04 is: 429,438.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,672.04 : 758,496.42 = 311,208.04 : x
  2. Step 2: Convert to fraction form
    549,672.04/758,496.42 = 311,208.04/x
  3. Step 3: Cross multiply
    549,672.04x = 758,496.42 × 311,208.04
  4. Step 4: Simplify right side
    549,672.04x = 236,050,184,215.22
  5. Step 5: Solve for x
    x = 236,050,184,215.22/549,672.04
  6. Step 6: Final answer
    x = 429,438.22

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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.