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Finding the Fourth Proportional to 655,916.91, 983,875.55 and 506,375.49

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Solution

The fourth proportional to 655,916.91, 983,875.55 and 506,375.49 is: 759,563.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,916.91 : 983,875.55 = 506,375.49 : x
  2. Step 2: Convert to fraction form
    655,916.91/983,875.55 = 506,375.49/x
  3. Step 3: Cross multiply
    655,916.91x = 983,875.55 × 506,375.49
  4. Step 4: Simplify right side
    655,916.91x = 498,210,461,198.39
  5. Step 5: Solve for x
    x = 498,210,461,198.39/655,916.91
  6. Step 6: Final answer
    x = 759,563.37

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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.