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Finding the Fourth Proportional to 549,344.41, 758,023.40 and 316,779.94

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Solution

The fourth proportional to 549,344.41, 758,023.40 and 316,779.94 is: 437,114.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,344.41 : 758,023.40 = 316,779.94 : x
  2. Step 2: Convert to fraction form
    549,344.41/758,023.40 = 316,779.94/x
  3. Step 3: Cross multiply
    549,344.41x = 758,023.40 × 316,779.94
  4. Step 4: Simplify right side
    549,344.41x = 240,126,607,170.60
  5. Step 5: Solve for x
    x = 240,126,607,170.60/549,344.41
  6. Step 6: Final answer
    x = 437,114.86

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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.