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Finding the Fourth Proportional to 556,381.17, 767,806.43 and 301,732.35

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Solution

The fourth proportional to 556,381.17, 767,806.43 and 301,732.35 is: 416,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,381.17 : 767,806.43 = 301,732.35 : x
  2. Step 2: Convert to fraction form
    556,381.17/767,806.43 = 301,732.35/x
  3. Step 3: Cross multiply
    556,381.17x = 767,806.43 × 301,732.35
  4. Step 4: Simplify right side
    556,381.17x = 231,672,036,960.35
  5. Step 5: Solve for x
    x = 231,672,036,960.35/556,381.17
  6. Step 6: Final answer
    x = 416,390.87

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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.