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Finding the Fourth Proportional to 366,387.70, 549,581.55 and 307,338.70

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Solution

The fourth proportional to 366,387.70, 549,581.55 and 307,338.70 is: 461,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,387.70 : 549,581.55 = 307,338.70 : x
  2. Step 2: Convert to fraction form
    366,387.70/549,581.55 = 307,338.70/x
  3. Step 3: Cross multiply
    366,387.70x = 549,581.55 × 307,338.70
  4. Step 4: Simplify right side
    366,387.70x = 168,907,679,120.99
  5. Step 5: Solve for x
    x = 168,907,679,120.99/366,387.70
  6. Step 6: Final answer
    x = 461,008.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.