Home / 289,277.40-432,156.95-187,244.28

Finding the Fourth Proportional to 289,277.40, 432,156.95 and 187,244.28

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Solution

The fourth proportional to 289,277.40, 432,156.95 and 187,244.28 is: 279,727.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,277.40 : 432,156.95 = 187,244.28 : x
  2. Step 2: Convert to fraction form
    289,277.40/432,156.95 = 187,244.28/x
  3. Step 3: Cross multiply
    289,277.40x = 432,156.95 × 187,244.28
  4. Step 4: Simplify right side
    289,277.40x = 80,918,916,949.75
  5. Step 5: Solve for x
    x = 80,918,916,949.75/289,277.40
  6. Step 6: Final answer
    x = 279,727.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.