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Finding the Fourth Proportional to 453,900.92, 626,385.05 and 272,615.93

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Solution

The fourth proportional to 453,900.92, 626,385.05 and 272,615.93 is: 376,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,900.92 : 626,385.05 = 272,615.93 : x
  2. Step 2: Convert to fraction form
    453,900.92/626,385.05 = 272,615.93/x
  3. Step 3: Cross multiply
    453,900.92x = 626,385.05 × 272,615.93
  4. Step 4: Simplify right side
    453,900.92x = 170,762,541,820.10
  5. Step 5: Solve for x
    x = 170,762,541,820.10/453,900.92
  6. Step 6: Final answer
    x = 376,211.05

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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.