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Finding the Fourth Proportional to 610,405.10, 915,722.43 and 245,694.58

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Solution

The fourth proportional to 610,405.10, 915,722.43 and 245,694.58 is: 368,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,405.10 : 915,722.43 = 245,694.58 : x
  2. Step 2: Convert to fraction form
    610,405.10/915,722.43 = 245,694.58/x
  3. Step 3: Cross multiply
    610,405.10x = 915,722.43 × 245,694.58
  4. Step 4: Simplify right side
    610,405.10x = 224,988,037,835.43
  5. Step 5: Solve for x
    x = 224,988,037,835.43/610,405.10
  6. Step 6: Final answer
    x = 368,588.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.