Home / 638,529.12-881,176.32-352,060.56

Finding the Fourth Proportional to 638,529.12, 881,176.32 and 352,060.56

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Solution

The fourth proportional to 638,529.12, 881,176.32 and 352,060.56 is: 485,846.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,529.12 : 881,176.32 = 352,060.56 : x
  2. Step 2: Convert to fraction form
    638,529.12/881,176.32 = 352,060.56/x
  3. Step 3: Cross multiply
    638,529.12x = 881,176.32 × 352,060.56
  4. Step 4: Simplify right side
    638,529.12x = 310,227,428,677.94
  5. Step 5: Solve for x
    x = 310,227,428,677.94/638,529.12
  6. Step 6: Final answer
    x = 485,846.96

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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.