Home / 638,744.20-881,428.94-366,856.36

Finding the Fourth Proportional to 638,744.20, 881,428.94 and 366,856.36

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Solution

The fourth proportional to 638,744.20, 881,428.94 and 366,856.36 is: 506,239.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,744.20 : 881,428.94 = 366,856.36 : x
  2. Step 2: Convert to fraction form
    638,744.20/881,428.94 = 366,856.36/x
  3. Step 3: Cross multiply
    638,744.20x = 881,428.94 × 366,856.36
  4. Step 4: Simplify right side
    638,744.20x = 323,357,809,864.92
  5. Step 5: Solve for x
    x = 323,357,809,864.92/638,744.20
  6. Step 6: Final answer
    x = 506,239.92

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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.