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Finding the Fourth Proportional to 647,177, 893,134.68 and 360,699.18

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Solution

The fourth proportional to 647,177, 893,134.68 and 360,699.18 is: 497,781.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,177 : 893,134.68 = 360,699.18 : x
  2. Step 2: Convert to fraction form
    647,177/893,134.68 = 360,699.18/x
  3. Step 3: Cross multiply
    647,177x = 893,134.68 × 360,699.18
  4. Step 4: Simplify right side
    647,177x = 322,152,946,705.56
  5. Step 5: Solve for x
    x = 322,152,946,705.56/647,177
  6. Step 6: Final answer
    x = 497,781.82

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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.