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Finding the Fourth Proportional to 624,401.93, 861,674.31 and 352,472.17

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Solution

The fourth proportional to 624,401.93, 861,674.31 and 352,472.17 is: 486,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,401.93 : 861,674.31 = 352,472.17 : x
  2. Step 2: Convert to fraction form
    624,401.93/861,674.31 = 352,472.17/x
  3. Step 3: Cross multiply
    624,401.93x = 861,674.31 × 352,472.17
  4. Step 4: Simplify right side
    624,401.93x = 303,716,216,277.82
  5. Step 5: Solve for x
    x = 303,716,216,277.82/624,401.93
  6. Step 6: Final answer
    x = 486,411.40

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1.5x scale

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.