Home / 377,799.58-521,343.30-216,646.84

Finding the Fourth Proportional to 377,799.58, 521,343.30 and 216,646.84

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Solution

The fourth proportional to 377,799.58, 521,343.30 and 216,646.84 is: 298,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,799.58 : 521,343.30 = 216,646.84 : x
  2. Step 2: Convert to fraction form
    377,799.58/521,343.30 = 216,646.84/x
  3. Step 3: Cross multiply
    377,799.58x = 521,343.30 × 216,646.84
  4. Step 4: Simplify right side
    377,799.58x = 112,947,378,500.17
  5. Step 5: Solve for x
    x = 112,947,378,500.17/377,799.58
  6. Step 6: Final answer
    x = 298,961.10

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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.