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Finding the Fourth Proportional to 453,009.76, 624,639.83 and 289,450.17

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Solution

The fourth proportional to 453,009.76, 624,639.83 and 289,450.17 is: 399,113.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,009.76 : 624,639.83 = 289,450.17 : x
  2. Step 2: Convert to fraction form
    453,009.76/624,639.83 = 289,450.17/x
  3. Step 3: Cross multiply
    453,009.76x = 624,639.83 × 289,450.17
  4. Step 4: Simplify right side
    453,009.76x = 180,802,103,535.02
  5. Step 5: Solve for x
    x = 180,802,103,535.02/453,009.76
  6. Step 6: Final answer
    x = 399,113.04

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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.