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Finding the Fourth Proportional to 549,636.29, 758,496.39 and 304,636.67

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Solution

The fourth proportional to 549,636.29, 758,496.39 and 304,636.67 is: 420,397.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,636.29 : 758,496.39 = 304,636.67 : x
  2. Step 2: Convert to fraction form
    549,636.29/758,496.39 = 304,636.67/x
  3. Step 3: Cross multiply
    549,636.29x = 758,496.39 × 304,636.67
  4. Step 4: Simplify right side
    549,636.29x = 231,065,814,456.62
  5. Step 5: Solve for x
    x = 231,065,814,456.62/549,636.29
  6. Step 6: Final answer
    x = 420,397.67

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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.