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Finding the Fourth Proportional to 377,463.95, 520,730.94 and 254,916.52

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Solution

The fourth proportional to 377,463.95, 520,730.94 and 254,916.52 is: 351,670.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,463.95 : 520,730.94 = 254,916.52 : x
  2. Step 2: Convert to fraction form
    377,463.95/520,730.94 = 254,916.52/x
  3. Step 3: Cross multiply
    377,463.95x = 520,730.94 × 254,916.52
  4. Step 4: Simplify right side
    377,463.95x = 132,742,918,735.24
  5. Step 5: Solve for x
    x = 132,742,918,735.24/377,463.95
  6. Step 6: Final answer
    x = 351,670.46

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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.