Home / 642,819.54-964,409.85-238,005.66

Finding the Fourth Proportional to 642,819.54, 964,409.85 and 238,005.66

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Solution

The fourth proportional to 642,819.54, 964,409.85 and 238,005.66 is: 357,075.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,819.54 : 964,409.85 = 238,005.66 : x
  2. Step 2: Convert to fraction form
    642,819.54/964,409.85 = 238,005.66/x
  3. Step 3: Cross multiply
    642,819.54x = 964,409.85 × 238,005.66
  4. Step 4: Simplify right side
    642,819.54x = 229,535,002,859.75
  5. Step 5: Solve for x
    x = 229,535,002,859.75/642,819.54
  6. Step 6: Final answer
    x = 357,075.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.