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Finding the Fourth Proportional to 508,068.63, 701,165.85 and 281,714.13

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Solution

The fourth proportional to 508,068.63, 701,165.85 and 281,714.13 is: 388,782.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,068.63 : 701,165.85 = 281,714.13 : x
  2. Step 2: Convert to fraction form
    508,068.63/701,165.85 = 281,714.13/x
  3. Step 3: Cross multiply
    508,068.63x = 701,165.85 × 281,714.13
  4. Step 4: Simplify right side
    508,068.63x = 197,528,327,418.46
  5. Step 5: Solve for x
    x = 197,528,327,418.46/508,068.63
  6. Step 6: Final answer
    x = 388,782.77

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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.