Home / 638,222.92-881,038.66-454,579.72

Finding the Fourth Proportional to 638,222.92, 881,038.66 and 454,579.72

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Solution

The fourth proportional to 638,222.92, 881,038.66 and 454,579.72 is: 627,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,222.92 : 881,038.66 = 454,579.72 : x
  2. Step 2: Convert to fraction form
    638,222.92/881,038.66 = 454,579.72/x
  3. Step 3: Cross multiply
    638,222.92x = 881,038.66 × 454,579.72
  4. Step 4: Simplify right side
    638,222.92x = 400,502,307,371.98
  5. Step 5: Solve for x
    x = 400,502,307,371.98/638,222.92
  6. Step 6: Final answer
    x = 627,527.30

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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.