Home / 409,916.98-565,948.64-257,164.61

Finding the Fourth Proportional to 409,916.98, 565,948.64 and 257,164.61

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Solution

The fourth proportional to 409,916.98, 565,948.64 and 257,164.61 is: 355,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,916.98 : 565,948.64 = 257,164.61 : x
  2. Step 2: Convert to fraction form
    409,916.98/565,948.64 = 257,164.61/x
  3. Step 3: Cross multiply
    409,916.98x = 565,948.64 × 257,164.61
  4. Step 4: Simplify right side
    409,916.98x = 145,541,959,999.81
  5. Step 5: Solve for x
    x = 145,541,959,999.81/409,916.98
  6. Step 6: Final answer
    x = 355,052.29

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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.