Home / 289,444.97-434,154.09-79,082.30

Finding the Fourth Proportional to 289,444.97, 434,154.09 and 79,082.30

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Solution

The fourth proportional to 289,444.97, 434,154.09 and 79,082.30 is: 118,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,444.97 : 434,154.09 = 79,082.30 : x
  2. Step 2: Convert to fraction form
    289,444.97/434,154.09 = 79,082.30/x
  3. Step 3: Cross multiply
    289,444.97x = 434,154.09 × 79,082.30
  4. Step 4: Simplify right side
    289,444.97x = 34,333,903,991.61
  5. Step 5: Solve for x
    x = 34,333,903,991.61/289,444.97
  6. Step 6: Final answer
    x = 118,619.80

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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.