Home / 418,259.43-626,875.20-193,315.55

Finding the Fourth Proportional to 418,259.43, 626,875.20 and 193,315.55

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Solution

The fourth proportional to 418,259.43, 626,875.20 and 193,315.55 is: 289,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,259.43 : 626,875.20 = 193,315.55 : x
  2. Step 2: Convert to fraction form
    418,259.43/626,875.20 = 193,315.55/x
  3. Step 3: Cross multiply
    418,259.43x = 626,875.20 × 193,315.55
  4. Step 4: Simplify right side
    418,259.43x = 121,184,720,934.98
  5. Step 5: Solve for x
    x = 121,184,720,934.98/418,259.43
  6. Step 6: Final answer
    x = 289,735.78

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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.