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Finding the Fourth Proportional to 549,379.64, 758,206.50 and 334,645.40

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Solution

The fourth proportional to 549,379.64, 758,206.50 and 334,645.40 is: 461,848.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,379.64 : 758,206.50 = 334,645.40 : x
  2. Step 2: Convert to fraction form
    549,379.64/758,206.50 = 334,645.40/x
  3. Step 3: Cross multiply
    549,379.64x = 758,206.50 × 334,645.40
  4. Step 4: Simplify right side
    549,379.64x = 253,730,317,475.10
  5. Step 5: Solve for x
    x = 253,730,317,475.10/549,379.64
  6. Step 6: Final answer
    x = 461,848.78

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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.