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Finding the Fourth Proportional to 549,742.98, 758,635.79 and 308,024.81

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Solution

The fourth proportional to 549,742.98, 758,635.79 and 308,024.81 is: 425,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,742.98 : 758,635.79 = 308,024.81 : x
  2. Step 2: Convert to fraction form
    549,742.98/758,635.79 = 308,024.81/x
  3. Step 3: Cross multiply
    549,742.98x = 758,635.79 × 308,024.81
  4. Step 4: Simplify right side
    549,742.98x = 233,678,645,073.95
  5. Step 5: Solve for x
    x = 233,678,645,073.95/549,742.98
  6. Step 6: Final answer
    x = 425,068.90

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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.