Home / 638,717.91-881,401.06-366,594.28

Finding the Fourth Proportional to 638,717.91, 881,401.06 and 366,594.28

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Solution

The fourth proportional to 638,717.91, 881,401.06 and 366,594.28 is: 505,883.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,717.91 : 881,401.06 = 366,594.28 : x
  2. Step 2: Convert to fraction form
    638,717.91/881,401.06 = 366,594.28/x
  3. Step 3: Cross multiply
    638,717.91x = 881,401.06 × 366,594.28
  4. Step 4: Simplify right side
    638,717.91x = 323,116,586,981.94
  5. Step 5: Solve for x
    x = 323,116,586,981.94/638,717.91
  6. Step 6: Final answer
    x = 505,883.09

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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.