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Finding the Fourth Proportional to 624,360.71, 861,620.40 and 337,880.81

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Solution

The fourth proportional to 624,360.71, 861,620.40 and 337,880.81 is: 466,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,360.71 : 861,620.40 = 337,880.81 : x
  2. Step 2: Convert to fraction form
    624,360.71/861,620.40 = 337,880.81/x
  3. Step 3: Cross multiply
    624,360.71x = 861,620.40 × 337,880.81
  4. Step 4: Simplify right side
    624,360.71x = 291,124,994,356.42
  5. Step 5: Solve for x
    x = 291,124,994,356.42/624,360.71
  6. Step 6: Final answer
    x = 466,276.93

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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.