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Finding the Fourth Proportional to 547,641.70, 755,743.63 and 302,619.63

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Solution

The fourth proportional to 547,641.70, 755,743.63 and 302,619.63 is: 417,614.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,641.70 : 755,743.63 = 302,619.63 : x
  2. Step 2: Convert to fraction form
    547,641.70/755,743.63 = 302,619.63/x
  3. Step 3: Cross multiply
    547,641.70x = 755,743.63 × 302,619.63
  4. Step 4: Simplify right side
    547,641.70x = 228,702,859,693.15
  5. Step 5: Solve for x
    x = 228,702,859,693.15/547,641.70
  6. Step 6: Final answer
    x = 417,614.04

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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.