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Finding the Fourth Proportional to 536,543.79, 740,218.26 and 345,668.50

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Solution

The fourth proportional to 536,543.79, 740,218.26 and 345,668.50 is: 476,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,543.79 : 740,218.26 = 345,668.50 : x
  2. Step 2: Convert to fraction form
    536,543.79/740,218.26 = 345,668.50/x
  3. Step 3: Cross multiply
    536,543.79x = 740,218.26 × 345,668.50
  4. Step 4: Simplify right side
    536,543.79x = 255,870,135,606.81
  5. Step 5: Solve for x
    x = 255,870,135,606.81/536,543.79
  6. Step 6: Final answer
    x = 476,885.84

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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.