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Finding the Fourth Proportional to 648,916.68, 895,495.68 and 362,440.92

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Solution

The fourth proportional to 648,916.68, 895,495.68 and 362,440.92 is: 500,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,916.68 : 895,495.68 = 362,440.92 : x
  2. Step 2: Convert to fraction form
    648,916.68/895,495.68 = 362,440.92/x
  3. Step 3: Cross multiply
    648,916.68x = 895,495.68 × 362,440.92
  4. Step 4: Simplify right side
    648,916.68x = 324,564,278,115.23
  5. Step 5: Solve for x
    x = 324,564,278,115.23/648,916.68
  6. Step 6: Final answer
    x = 500,163.25

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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.